diff --git a/assets/images/tictactoe4.png.original b/assets/images/tictactoe4.png.original
new file mode 100644
index 0000000..13beb84
Binary files /dev/null and b/assets/images/tictactoe4.png.original differ
diff --git a/experiments/points/index.js b/experiments/points/index.js
index fa4a597..ef867a0 100644
--- a/experiments/points/index.js
+++ b/experiments/points/index.js
@@ -21,7 +21,7 @@ const metricDisplayInfo = {
     commentsPosted: { name: "Comments posted", units: "comment" },
     greatestInfipage: { name: "Largest infipage visited" },
     heavpootLocations: { name: "Heavpoot's Game states", units: "state" },
-    heavpootDeaths: { name: "Heavpoot's Game deaths", units: "death" }
+    heavpootDeaths: { name: "Heavpoot's Game deaths", units: "death" },
 }
 
 for (const opponent of ["ai1", "ai2"]) {
@@ -30,6 +30,10 @@ for (const opponent of ["ai1", "ai2"]) {
     }
 }
 
+for (const result of ["Wins", "Losses", "Draws"]) {
+    metricDisplayInfo[`ttt4${result}`] = { name: `${result} in 4D Tic-Tac-Toe`, units: "game" }
+}
+
 const displayMetric = metric => {
     let name = metric[0]
     let value = metric[1]
diff --git a/experiments/tictactoe/index.html b/experiments/tictactoe/index.html
index f4f16a7..9525347 100644
--- a/experiments/tictactoe/index.html
+++ b/experiments/tictactoe/index.html
@@ -360,6 +360,8 @@ slug: tictactoe
             function render() {
                 var html = ""
                 for (var l = 0; l < size; l++) {
+                    if (l == 2) html += `</div>`
+                    if (l == 0 || l == 2) html += `<div class="ctr">`
                     html += '<div class="layer">'
                     for (var r = 0; r < size; r++) {
                         html += '<div class="row">'
@@ -373,6 +375,7 @@ slug: tictactoe
                         }
                         html += '</div>'
                     }
+                    if (l == 3) html += `</div>`
                     html += '</div>'
                 }
                 screen.innerHTML = html
diff --git a/experiments/tictactoe4d/app.css b/experiments/tictactoe4d/app.css
new file mode 100644
index 0000000..bf1910e
--- /dev/null
+++ b/experiments/tictactoe4d/app.css
@@ -0,0 +1,2 @@
+.layer{margin:1em;border:1px solid #666;display:inline-block}.cell{display:flex;flex-direction:column}.slot{width:2rem;height:2rem;display:inline-block;border:1px solid #aaa;font-size:.5em}.slot-1{background:#00f}.slot-2{background:red}.board,.row{display:flex}.highlight{width:50%;height:50%;top:25%;left:25%;position:relative}.abspos-indicator{height:100%;background-size:cover}
+/*# sourceMappingURL=app.css.map */
diff --git a/experiments/tictactoe4d/app.css.map b/experiments/tictactoe4d/app.css.map
new file mode 100644
index 0000000..326271a
--- /dev/null
+++ b/experiments/tictactoe4d/app.css.map
@@ -0,0 +1,7 @@
+{
+  "version": 3,
+  "sources": ["../app.css"],
+  "sourcesContent": [".layer {\n    margin: 1em;\n    border: 1px solid #666;\n    display: inline-block;\n}\n.cell {\n    display: flex;\n    flex-direction: column;\n}\n.slot {\n    width: 2rem;\n    height: 2rem;\n    display: inline-block;\n    border: 1px solid #aaa;\n    font-size: 0.5em;\n}\n.slot-1 {\n    background: blue;\n}\n.slot-2 {\n    background: red;\n}\n.board {\n    display: flex;\n}\n.row {\n    display: flex;\n}\n.highlight {\n    width: 50%;\n    height: 50%;\n    top: 25%;\n    left: 25%;\n    position: relative;\n}\n.abspos-indicator {\n    height: 100%;\n    background-size: cover;\n}"],
+  "mappings": "AAAA,CAAC,MAAD,OACY,IACR,OAAQ,IAAI,MAAM,KAClB,QAAS,YACb,CACA,CAAC,KACG,QAAS,KACT,eAAgB,MACpB,CACA,CAAC,KACG,MAAO,KACP,OAAQ,KACR,QAAS,aACT,OAAQ,IAAI,MAAM,KAClB,UAAW,IACf,CACA,CAAC,OACG,WAAY,IAChB,CACA,CAAC,OACG,WAAY,GAChB,CACA,CAAC,MAGD,CAAC,IAFG,QAAS,IACb,CAIA,CAAC,UACG,MAAO,IACP,OAAQ,IACR,IAAK,IACL,KAAM,IACN,SAAU,QACd,CACA,CAAC,iBACG,OAAQ,KACR,gBAAiB,KACrB",
+  "names": []
+}
diff --git a/experiments/tictactoe4d/app.js b/experiments/tictactoe4d/app.js
new file mode 100644
index 0000000..c58b1bb
--- /dev/null
+++ b/experiments/tictactoe4d/app.js
@@ -0,0 +1,3 @@
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window&&window.points.then(e=>{console.log("writing to achievement system"),n===1?(e.unlockAchievement("ttt4Win"),e.updateMetric("ttt4Wins",t=>t+1,0)):n===2?e.updateMetric("ttt4Losses",t=>t+1,0):isDraw&&e.updateMetric("ttt4Draws",t=>t+1,0)})};j().then(n=>{let e=S();console.log("rust initiated",e),run_ai_background=t=>{I.postMessage(t),console.log("dispatching")},I.onmessage=t=>{e(t.data)}});})();
+//# sourceMappingURL=app.js.map
diff --git a/experiments/tictactoe4d/app.js.map b/experiments/tictactoe4d/app.js.map
new file mode 100644
index 0000000..f48c8b4
--- /dev/null
+++ b/experiments/tictactoe4d/app.js.map
@@ -0,0 +1,7 @@
+{
+  "version": 3,
+  "sources": ["../pkg/tic_tac_toe_4d.js", "../src/app.js"],
+  "sourcesContent": ["let wasm;\n\nconst heap = new Array(128).fill(undefined);\n\nheap.push(undefined, null, true, false);\n\nfunction getObject(idx) { return heap[idx]; }\n\nlet heap_next = heap.length;\n\nfunction dropObject(idx) {\n    if (idx < 132) return;\n    heap[idx] = heap_next;\n    heap_next = idx;\n}\n\nfunction takeObject(idx) {\n    const ret = getObject(idx);\n    dropObject(idx);\n    return ret;\n}\n\nfunction addHeapObject(obj) {\n    if (heap_next === heap.length) heap.push(heap.length + 1);\n    const idx = heap_next;\n    heap_next = heap[idx];\n\n    heap[idx] = obj;\n    return idx;\n}\n\nconst cachedTextDecoder = (typeof TextDecoder !== 'undefined' ? new TextDecoder('utf-8', { ignoreBOM: true, fatal: true }) : { decode: () => { throw Error('TextDecoder not available') } } );\n\nif (typeof TextDecoder !== 'undefined') { cachedTextDecoder.decode(); };\n\nlet cachedUint8Memory0 = null;\n\nfunction getUint8Memory0() {\n    if (cachedUint8Memory0 === null || cachedUint8Memory0.byteLength === 0) {\n        cachedUint8Memory0 = new Uint8Array(wasm.memory.buffer);\n    }\n    return cachedUint8Memory0;\n}\n\nfunction getStringFromWasm0(ptr, len) {\n    ptr = ptr >>> 0;\n    return cachedTextDecoder.decode(getUint8Memory0().subarray(ptr, ptr + len));\n}\n\nfunction isLikeNone(x) {\n    return x === undefined || x === null;\n}\n\nlet cachedFloat64Memory0 = null;\n\nfunction getFloat64Memory0() {\n    if (cachedFloat64Memory0 === null || cachedFloat64Memory0.byteLength === 0) {\n        cachedFloat64Memory0 = new Float64Array(wasm.memory.buffer);\n    }\n    return cachedFloat64Memory0;\n}\n\nlet cachedInt32Memory0 = null;\n\nfunction getInt32Memory0() {\n    if (cachedInt32Memory0 === null || cachedInt32Memory0.byteLength === 0) {\n        cachedInt32Memory0 = new Int32Array(wasm.memory.buffer);\n    }\n    return cachedInt32Memory0;\n}\n\nfunction debugString(val) {\n    // primitive types\n    const type = typeof val;\n    if (type == 'number' || type == 'boolean' || val == null) {\n        return  `${val}`;\n    }\n    if (type == 'string') {\n        return `\"${val}\"`;\n    }\n    if (type == 'symbol') {\n        const description = val.description;\n        if (description == null) {\n            return 'Symbol';\n        } else {\n            return `Symbol(${description})`;\n        }\n    }\n    if (type == 'function') {\n        const name = val.name;\n        if (typeof name == 'string' && name.length > 0) {\n            return `Function(${name})`;\n        } else {\n            return 'Function';\n        }\n    }\n    // objects\n    if (Array.isArray(val)) {\n        const length = val.length;\n        let debug = '[';\n        if (length > 0) {\n            debug += debugString(val[0]);\n        }\n        for(let i = 1; i < length; i++) {\n            debug += ', ' + debugString(val[i]);\n        }\n        debug += ']';\n        return debug;\n    }\n    // Test for built-in\n    const builtInMatches = /\\[object ([^\\]]+)\\]/.exec(toString.call(val));\n    let className;\n    if (builtInMatches.length > 1) {\n        className = builtInMatches[1];\n    } else {\n        // Failed to match the standard '[object ClassName]'\n        return toString.call(val);\n    }\n    if (className == 'Object') {\n        // we're a user defined class or Object\n        // JSON.stringify avoids problems with cycles, and is generally much\n        // easier than looping through ownProperties of `val`.\n        try {\n            return 'Object(' + JSON.stringify(val) + ')';\n        } catch (_) {\n            return 'Object';\n        }\n    }\n    // errors\n    if (val instanceof Error) {\n        return `${val.name}: ${val.message}\\n${val.stack}`;\n    }\n    // TODO we could test for more things here, like `Set`s and `Map`s.\n    return className;\n}\n\nlet WASM_VECTOR_LEN = 0;\n\nconst cachedTextEncoder = (typeof TextEncoder !== 'undefined' ? new TextEncoder('utf-8') : { encode: () => { throw Error('TextEncoder not available') } } );\n\nconst encodeString = (typeof cachedTextEncoder.encodeInto === 'function'\n    ? function (arg, view) {\n    return cachedTextEncoder.encodeInto(arg, view);\n}\n    : function (arg, view) {\n    const buf = cachedTextEncoder.encode(arg);\n    view.set(buf);\n    return {\n        read: arg.length,\n        written: buf.length\n    };\n});\n\nfunction passStringToWasm0(arg, malloc, realloc) {\n\n    if (realloc === undefined) {\n        const buf = cachedTextEncoder.encode(arg);\n        const ptr = malloc(buf.length, 1) >>> 0;\n        getUint8Memory0().subarray(ptr, ptr + buf.length).set(buf);\n        WASM_VECTOR_LEN = buf.length;\n        return ptr;\n    }\n\n    let len = arg.length;\n    let ptr = malloc(len, 1) >>> 0;\n\n    const mem = getUint8Memory0();\n\n    let offset = 0;\n\n    for (; offset < len; offset++) {\n        const code = arg.charCodeAt(offset);\n        if (code > 0x7F) break;\n        mem[ptr + offset] = code;\n    }\n\n    if (offset !== len) {\n        if (offset !== 0) {\n            arg = arg.slice(offset);\n        }\n        ptr = realloc(ptr, len, len = offset + arg.length * 3, 1) >>> 0;\n        const view = getUint8Memory0().subarray(ptr + offset, ptr + len);\n        const ret = encodeString(arg, view);\n\n        offset += ret.written;\n    }\n\n    WASM_VECTOR_LEN = offset;\n    return ptr;\n}\n\nfunction makeMutClosure(arg0, arg1, dtor, f) {\n    const state = { a: arg0, b: arg1, cnt: 1, dtor };\n    const real = (...args) => {\n        // First up with a closure we increment the internal reference\n        // count. This ensures that the Rust closure environment won't\n        // be deallocated while we're invoking it.\n        state.cnt++;\n        const a = state.a;\n        state.a = 0;\n        try {\n            return f(a, state.b, ...args);\n        } finally {\n            if (--state.cnt === 0) {\n                wasm.__wbindgen_export_2.get(state.dtor)(a, state.b);\n\n            } else {\n                state.a = a;\n            }\n        }\n    };\n    real.original = state;\n\n    return real;\n}\n\nfunction passArray8ToWasm0(arg, malloc) {\n    const ptr = malloc(arg.length * 1, 1) >>> 0;\n    getUint8Memory0().set(arg, ptr / 1);\n    WASM_VECTOR_LEN = arg.length;\n    return ptr;\n}\nfunction __wbg_adapter_18(arg0, arg1, arg2) {\n    const ptr0 = passArray8ToWasm0(arg2, wasm.__wbindgen_malloc);\n    const len0 = WASM_VECTOR_LEN;\n    wasm.wasm_bindgen__convert__closures__invoke1_mut__h5860e381bcb9706c(arg0, arg1, ptr0, len0);\n}\n\nfunction makeClosure(arg0, arg1, dtor, f) {\n    const state = { a: arg0, b: arg1, cnt: 1, dtor };\n    const real = (...args) => {\n        // First up with a closure we increment the internal reference\n        // count. This ensures that the Rust closure environment won't\n        // be deallocated while we're invoking it.\n        state.cnt++;\n        try {\n            return f(state.a, state.b, ...args);\n        } finally {\n            if (--state.cnt === 0) {\n                wasm.__wbindgen_export_2.get(state.dtor)(state.a, state.b);\n                state.a = 0;\n\n            }\n        }\n    };\n    real.original = state;\n\n    return real;\n}\nfunction __wbg_adapter_21(arg0, arg1, arg2) {\n    wasm.wasm_bindgen__convert__closures__invoke1__h5a4fa13f3ec138ca(arg0, arg1, addHeapObject(arg2));\n}\n\nfunction getArrayU8FromWasm0(ptr, len) {\n    ptr = ptr >>> 0;\n    return getUint8Memory0().subarray(ptr / 1, ptr / 1 + len);\n}\n/**\n* @param {Uint8Array} state\n* @returns {Uint8Array}\n*/\nexport function run_ai(state) {\n    try {\n        const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);\n        const ptr0 = passArray8ToWasm0(state, wasm.__wbindgen_malloc);\n        const len0 = WASM_VECTOR_LEN;\n        wasm.run_ai(retptr, ptr0, len0);\n        var r0 = getInt32Memory0()[retptr / 4 + 0];\n        var r1 = getInt32Memory0()[retptr / 4 + 1];\n        var v2 = getArrayU8FromWasm0(r0, r1).slice();\n        wasm.__wbindgen_free(r0, r1 * 1, 1);\n        return v2;\n    } finally {\n        wasm.__wbindgen_add_to_stack_pointer(16);\n    }\n}\n\nfunction notDefined(what) { return () => { throw new Error(`${what} is not defined`); }; }\n/**\n* @returns {any}\n*/\nexport function main() {\n    const ret = wasm.main();\n    return takeObject(ret);\n}\n\nlet cachedUint32Memory0 = null;\n\nfunction getUint32Memory0() {\n    if (cachedUint32Memory0 === null || cachedUint32Memory0.byteLength === 0) {\n        cachedUint32Memory0 = new Uint32Array(wasm.memory.buffer);\n    }\n    return cachedUint32Memory0;\n}\n\nfunction getArrayJsValueFromWasm0(ptr, len) {\n    ptr = ptr >>> 0;\n    const mem = getUint32Memory0();\n    const slice = mem.subarray(ptr / 4, ptr / 4 + len);\n    const result = [];\n    for (let i = 0; i < slice.length; i++) {\n        result.push(takeObject(slice[i]));\n    }\n    return result;\n}\n\nfunction handleError(f, args) {\n    try {\n        return f.apply(this, args);\n    } catch (e) {\n        wasm.__wbindgen_exn_store(addHeapObject(e));\n    }\n}\n\nasync function __wbg_load(module, imports) {\n    if (typeof Response === 'function' && module instanceof Response) {\n        if (typeof WebAssembly.instantiateStreaming === 'function') {\n            try {\n                return await WebAssembly.instantiateStreaming(module, imports);\n\n            } catch (e) {\n                if (module.headers.get('Content-Type') != 'application/wasm') {\n                    console.warn(\"`WebAssembly.instantiateStreaming` failed because your server does not serve wasm with `application/wasm` MIME type. Falling back to `WebAssembly.instantiate` which is slower. Original error:\\n\", e);\n\n                } else {\n                    throw e;\n                }\n            }\n        }\n\n        const bytes = await module.arrayBuffer();\n        return await WebAssembly.instantiate(bytes, imports);\n\n    } else {\n        const instance = await WebAssembly.instantiate(module, imports);\n\n        if (instance instanceof WebAssembly.Instance) {\n            return { instance, module };\n\n        } else {\n            return instance;\n        }\n    }\n}\n\nfunction __wbg_get_imports() {\n    const imports = {};\n    imports.wbg = {};\n    imports.wbg.__wbindgen_object_drop_ref = function(arg0) {\n        takeObject(arg0);\n    };\n    imports.wbg.__wbindgen_object_clone_ref = function(arg0) {\n        const ret = getObject(arg0);\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_wincallback_a6a4fc5b782108cf = typeof win_callback == 'function' ? win_callback : notDefined('win_callback');\n    imports.wbg.__wbg_runaibackground_8f0429c82a23ffaf = function(arg0, arg1) {\n        var v0 = getArrayU8FromWasm0(arg0, arg1).slice();\n        wasm.__wbindgen_free(arg0, arg1 * 1, 1);\n        run_ai_background(v0);\n    };\n    imports.wbg.__wbindgen_string_new = function(arg0, arg1) {\n        const ret = getStringFromWasm0(arg0, arg1);\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbindgen_number_get = function(arg0, arg1) {\n        const obj = getObject(arg1);\n        const ret = typeof(obj) === 'number' ? obj : undefined;\n        getFloat64Memory0()[arg0 / 8 + 1] = isLikeNone(ret) ? 0 : ret;\n        getInt32Memory0()[arg0 / 4 + 0] = !isLikeNone(ret);\n    };\n    imports.wbg.__wbindgen_number_new = function(arg0) {\n        const ret = arg0;\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_new_abda76e883ba8a5f = function() {\n        const ret = new Error();\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_stack_658279fe44541cf6 = function(arg0, arg1) {\n        const ret = getObject(arg1).stack;\n        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        const len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbg_error_f851667af71bcfc6 = function(arg0, arg1) {\n        let deferred0_0;\n        let deferred0_1;\n        try {\n            deferred0_0 = arg0;\n            deferred0_1 = arg1;\n            console.error(getStringFromWasm0(arg0, arg1));\n        } finally {\n            wasm.__wbindgen_free(deferred0_0, deferred0_1, 1);\n        }\n    };\n    imports.wbg.__wbg_warn_40349716c899750a = function(arg0, arg1) {\n        var v0 = getArrayJsValueFromWasm0(arg0, arg1).slice();\n        wasm.__wbindgen_free(arg0, arg1 * 4, 4);\n        console.warn(...v0);\n    };\n    imports.wbg.__wbg_instanceof_Window_434ce1849eb4e0fc = function(arg0) {\n        let result;\n        try {\n            result = getObject(arg0) instanceof Window;\n        } catch (_) {\n            result = false;\n        }\n        const ret = result;\n        return ret;\n    };\n    imports.wbg.__wbg_body_4579ae140279af20 = function(arg0) {\n        const ret = getObject(arg0).body;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_createElement_d15f046703844f09 = function() { return handleError(function (arg0, arg1, arg2) {\n        const ret = getObject(arg0).createElement(getStringFromWasm0(arg1, arg2));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_createElementNS_11acf9c78d336078 = function() { return handleError(function (arg0, arg1, arg2, arg3, arg4) {\n        const ret = getObject(arg0).createElementNS(arg1 === 0 ? undefined : getStringFromWasm0(arg1, arg2), getStringFromWasm0(arg3, arg4));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_createTextNode_18d067bf6369a475 = function(arg0, arg1, arg2) {\n        const ret = getObject(arg0).createTextNode(getStringFromWasm0(arg1, arg2));\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_getElementById_af8feeb3fb877150 = function(arg0, arg1, arg2) {\n        const ret = getObject(arg0).getElementById(getStringFromWasm0(arg1, arg2));\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_instanceof_Element_c9423704dd5d9b1d = function(arg0) {\n        let result;\n        try {\n            result = getObject(arg0) instanceof Element;\n        } catch (_) {\n            result = false;\n        }\n        const ret = result;\n        return ret;\n    };\n    imports.wbg.__wbg_namespaceURI_9fd9462aeda0a089 = function(arg0, arg1) {\n        const ret = getObject(arg1).namespaceURI;\n        var ptr1 = isLikeNone(ret) ? 0 : passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        var len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbg_removeAttribute_8f442821de341f11 = function() { return handleError(function (arg0, arg1, arg2) {\n        getObject(arg0).removeAttribute(getStringFromWasm0(arg1, arg2));\n    }, arguments) };\n    imports.wbg.__wbg_setAttribute_fecb2c0d020f422f = function() { return handleError(function (arg0, arg1, arg2, arg3, arg4) {\n        getObject(arg0).setAttribute(getStringFromWasm0(arg1, arg2), getStringFromWasm0(arg3, arg4));\n    }, arguments) };\n    imports.wbg.__wbg_target_ee132da05a9ef949 = function(arg0) {\n        const ret = getObject(arg0).target;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_cancelBubble_5739e699df6294b0 = function(arg0) {\n        const ret = getObject(arg0).cancelBubble;\n        return ret;\n    };\n    imports.wbg.__wbg_addEventListener_1151978b9ef85f25 = function() { return handleError(function (arg0, arg1, arg2, arg3, arg4) {\n        getObject(arg0).addEventListener(getStringFromWasm0(arg1, arg2), getObject(arg3), getObject(arg4));\n    }, arguments) };\n    imports.wbg.__wbg_setchecked_b4c153b5e9fbc166 = function(arg0, arg1) {\n        getObject(arg0).checked = arg1 !== 0;\n    };\n    imports.wbg.__wbg_value_a2e4cbb5179fb3b8 = function(arg0, arg1) {\n        const ret = getObject(arg1).value;\n        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        const len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbg_setvalue_f9de54bc4a5880ce = function(arg0, arg1, arg2) {\n        getObject(arg0).value = getStringFromWasm0(arg1, arg2);\n    };\n    imports.wbg.__wbg_value_6b1ddbb6e9155da3 = function(arg0, arg1) {\n        const ret = getObject(arg1).value;\n        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        const len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbg_setvalue_5ef50a7282dd6d7e = function(arg0, arg1, arg2) {\n        getObject(arg0).value = getStringFromWasm0(arg1, arg2);\n    };\n    imports.wbg.__wbg_parentElement_5a7090f336d94c74 = function(arg0) {\n        const ret = getObject(arg0).parentElement;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_lastChild_b2bc9e1e4adf0cda = function(arg0) {\n        const ret = getObject(arg0).lastChild;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_setnodeValue_7ed608b56bb5f51b = function(arg0, arg1, arg2) {\n        getObject(arg0).nodeValue = arg1 === 0 ? undefined : getStringFromWasm0(arg1, arg2);\n    };\n    imports.wbg.__wbg_appendChild_f60942b2565cb803 = function() { return handleError(function (arg0, arg1) {\n        const ret = getObject(arg0).appendChild(getObject(arg1));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_insertBefore_d8e803d8ba9a41b8 = function() { return handleError(function (arg0, arg1, arg2) {\n        const ret = getObject(arg0).insertBefore(getObject(arg1), getObject(arg2));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_removeChild_38dc2b8a0f4f0a41 = function() { return handleError(function (arg0, arg1) {\n        const ret = getObject(arg0).removeChild(getObject(arg1));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_document_17e852b4666eac5e = function(arg0) {\n        const ret = getObject(arg0).document;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_debug_ca7d8917245536d0 = function(arg0, arg1, arg2, arg3) {\n        console.debug(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_error_1189b5de6dd1b808 = function(arg0) {\n        console.error(getObject(arg0));\n    };\n    imports.wbg.__wbg_error_4a7b91f097a233a5 = function(arg0, arg1, arg2, arg3) {\n        console.error(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_info_d4ce670cd6ec6fde = function(arg0, arg1, arg2, arg3) {\n        console.info(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_log_50738d2ca2ec904a = function(arg0, arg1, arg2, arg3) {\n        console.log(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_warn_2eee9ed96860a8b7 = function(arg0, arg1, arg2, arg3) {\n        console.warn(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_self_c4a869f7521d7b18 = function() { return handleError(function () {\n        const ret = self.self;\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_window_f76bff89ab6e4c74 = function() { return handleError(function () {\n        const ret = window.window;\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_globalThis_71824672ea2add7c = function() { return handleError(function () {\n        const ret = globalThis.globalThis;\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_global_f78549112bdb0090 = function() { return handleError(function () {\n        const ret = global.global;\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbindgen_is_undefined = function(arg0) {\n        const ret = getObject(arg0) === undefined;\n        return ret;\n    };\n    imports.wbg.__wbg_newnoargs_4cbce0ba8003ced4 = function(arg0, arg1) {\n        const ret = new Function(getStringFromWasm0(arg0, arg1));\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_call_875d4ea9abbec88f = function() { return handleError(function (arg0, arg1) {\n        const ret = getObject(arg0).call(getObject(arg1));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_get_02999bb2caeeff61 = function() { return handleError(function (arg0, arg1) {\n        const ret = Reflect.get(getObject(arg0), getObject(arg1));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_new_fc6bfaed5ca1b77a = function() {\n        const ret = new Object();\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_valueOf_b57a82897edf3264 = function(arg0) {\n        const ret = getObject(arg0).valueOf();\n        return ret;\n    };\n    imports.wbg.__wbg_is_e0a4fb92be049653 = function(arg0, arg1) {\n        const ret = Object.is(getObject(arg0), getObject(arg1));\n        return ret;\n    };\n    imports.wbg.__wbg_set_3340302df484a06c = function() { return handleError(function (arg0, arg1, arg2) {\n        const ret = Reflect.set(getObject(arg0), getObject(arg1), getObject(arg2));\n        return ret;\n    }, arguments) };\n    imports.wbg.__wbindgen_debug_string = function(arg0, arg1) {\n        const ret = debugString(getObject(arg1));\n        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        const len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbindgen_throw = function(arg0, arg1) {\n        throw new Error(getStringFromWasm0(arg0, arg1));\n    };\n    imports.wbg.__wbindgen_closure_wrapper106 = function(arg0, arg1, arg2) {\n        const ret = makeMutClosure(arg0, arg1, 6, __wbg_adapter_18);\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbindgen_closure_wrapper334 = function(arg0, arg1, arg2) {\n        const ret = makeClosure(arg0, arg1, 119, __wbg_adapter_21);\n        return addHeapObject(ret);\n    };\n\n    return imports;\n}\n\nfunction __wbg_init_memory(imports, maybe_memory) {\n\n}\n\nfunction __wbg_finalize_init(instance, module) {\n    wasm = instance.exports;\n    __wbg_init.__wbindgen_wasm_module = module;\n    cachedFloat64Memory0 = null;\n    cachedInt32Memory0 = null;\n    cachedUint32Memory0 = null;\n    cachedUint8Memory0 = null;\n\n\n    return wasm;\n}\n\nfunction initSync(module) {\n    if (wasm !== undefined) return wasm;\n\n    const imports = __wbg_get_imports();\n\n    __wbg_init_memory(imports);\n\n    if (!(module instanceof WebAssembly.Module)) {\n        module = new WebAssembly.Module(module);\n    }\n\n    const instance = new WebAssembly.Instance(module, imports);\n\n    return __wbg_finalize_init(instance, module);\n}\n\nasync function __wbg_init(input) {\n    if (wasm !== undefined) return wasm;\n\n    if (typeof input === 'undefined') {\n        input = new URL('tic_tac_toe_4d_bg.wasm', location);\n    }\n    const imports = __wbg_get_imports();\n\n    if (typeof input === 'string' || (typeof Request === 'function' && input instanceof Request) || (typeof URL === 'function' && input instanceof URL)) {\n        input = fetch(input);\n    }\n\n    __wbg_init_memory(imports);\n\n    const { instance, module } = await __wbg_load(await input, imports);\n\n    return __wbg_finalize_init(instance, module);\n}\n\nexport { initSync }\nexport default __wbg_init;\n", "import wasm_init from \"../pkg/tic_tac_toe_4d\"\nimport \"../app.css\"\nimport * as wasm_api from \"../pkg/tic_tac_toe_4d\"\n\nvar worker = new Worker(\"webworker_glue.js\")\n\nwin_callback = winner => {\n    console.log(winner)\n    if (\"points\" in window) {\n        window.points.then(points => {\n            console.log(\"writing to achievement system\")\n            if (winner === 1) {\n                points.unlockAchievement(`ttt4Win`)\n                points.updateMetric(`ttt4Wins`, x => x + 1, 0)\n            } else if (winner === 2) { \n                points.updateMetric(`ttt4Losses`, x => x + 1, 0)\n            } else if (isDraw) {\n                points.updateMetric(`ttt4Draws`, x => x + 1, 0)\n            }\n        })\n    }\n}\n\nwasm_init().then(x => {\n    const callback = wasm_api.main()\n    console.log(\"rust initiated\", callback)\n    run_ai_background = data => {\n        worker.postMessage(data)\n        console.log(\"dispatching\")\n    }\n    \n    worker.onmessage = ev => {\n        callback(ev.data)\n    }\n})"],
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+}
diff --git a/experiments/tictactoe4d/assets/horiz0.svg b/experiments/tictactoe4d/assets/horiz0.svg
new file mode 100644
index 0000000..9fd2d1a
--- /dev/null
+++ b/experiments/tictactoe4d/assets/horiz0.svg
@@ -0,0 +1,4 @@
+<svg version="1.1" width="100" height="100" xmlns="http://www.w3.org/2000/svg">
+    <rect x="25%" width="12.5%" height="100%" fill="rgb(0 0 0 / 10%)" />
+    <rect x="75%" width="12.5%" height="100%" fill="rgb(0 0 0 / 10%)" />
+</svg>
\ No newline at end of file
diff --git a/experiments/tictactoe4d/assets/horiz1.svg b/experiments/tictactoe4d/assets/horiz1.svg
new file mode 100644
index 0000000..ab749d6
--- /dev/null
+++ b/experiments/tictactoe4d/assets/horiz1.svg
@@ -0,0 +1,4 @@
+<svg version="1.1" width="100" height="100" xmlns="http://www.w3.org/2000/svg">
+    <rect x="25%" width="25%" height="100%" fill="rgb(0 0 0 / 10%)" />
+    <rect x="75%" width="25%" height="100%" fill="rgb(0 0 0 / 10%)" />
+</svg>
\ No newline at end of file
diff --git a/experiments/tictactoe4d/assets/horiz2.svg b/experiments/tictactoe4d/assets/horiz2.svg
new file mode 100644
index 0000000..cef1deb
--- /dev/null
+++ b/experiments/tictactoe4d/assets/horiz2.svg
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new file mode 100644
index 0000000..bf1910e
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new file mode 100644
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index 0000000..7d8db73
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+  "version": 3,
+  "sources": ["../pkg/tic_tac_toe_4d.js", "../src/app.js"],
+  "sourcesContent": ["let wasm;\n\nconst heap = new Array(128).fill(undefined);\n\nheap.push(undefined, null, true, false);\n\nfunction getObject(idx) { return heap[idx]; }\n\nlet heap_next = heap.length;\n\nfunction dropObject(idx) {\n    if (idx < 132) return;\n    heap[idx] = heap_next;\n    heap_next = idx;\n}\n\nfunction takeObject(idx) {\n    const ret = getObject(idx);\n    dropObject(idx);\n    return ret;\n}\n\nfunction addHeapObject(obj) {\n    if (heap_next === heap.length) heap.push(heap.length + 1);\n    const idx = heap_next;\n    heap_next = heap[idx];\n\n    heap[idx] = obj;\n    return idx;\n}\n\nconst cachedTextDecoder = (typeof TextDecoder !== 'undefined' ? new TextDecoder('utf-8', { ignoreBOM: true, fatal: true }) : { decode: () => { throw Error('TextDecoder not available') } } );\n\nif (typeof TextDecoder !== 'undefined') { cachedTextDecoder.decode(); };\n\nlet cachedUint8Memory0 = null;\n\nfunction getUint8Memory0() {\n    if (cachedUint8Memory0 === null || cachedUint8Memory0.byteLength === 0) {\n        cachedUint8Memory0 = new Uint8Array(wasm.memory.buffer);\n    }\n    return cachedUint8Memory0;\n}\n\nfunction getStringFromWasm0(ptr, len) {\n    ptr = ptr >>> 0;\n    return cachedTextDecoder.decode(getUint8Memory0().subarray(ptr, ptr + len));\n}\n\nfunction isLikeNone(x) {\n    return x === undefined || x === null;\n}\n\nlet cachedFloat64Memory0 = null;\n\nfunction getFloat64Memory0() {\n    if (cachedFloat64Memory0 === null || cachedFloat64Memory0.byteLength === 0) {\n        cachedFloat64Memory0 = new Float64Array(wasm.memory.buffer);\n    }\n    return cachedFloat64Memory0;\n}\n\nlet cachedInt32Memory0 = null;\n\nfunction getInt32Memory0() {\n    if (cachedInt32Memory0 === null || cachedInt32Memory0.byteLength === 0) {\n        cachedInt32Memory0 = new Int32Array(wasm.memory.buffer);\n    }\n    return cachedInt32Memory0;\n}\n\nfunction debugString(val) {\n    // primitive types\n    const type = typeof val;\n    if (type == 'number' || type == 'boolean' || val == null) {\n        return  `${val}`;\n    }\n    if (type == 'string') {\n        return `\"${val}\"`;\n    }\n    if (type == 'symbol') {\n        const description = val.description;\n        if (description == null) {\n            return 'Symbol';\n        } else {\n            return `Symbol(${description})`;\n        }\n    }\n    if (type == 'function') {\n        const name = val.name;\n        if (typeof name == 'string' && name.length > 0) {\n            return `Function(${name})`;\n        } else {\n            return 'Function';\n        }\n    }\n    // objects\n    if (Array.isArray(val)) {\n        const length = val.length;\n        let debug = '[';\n        if (length > 0) {\n            debug += debugString(val[0]);\n        }\n        for(let i = 1; i < length; i++) {\n            debug += ', ' + debugString(val[i]);\n        }\n        debug += ']';\n        return debug;\n    }\n    // Test for built-in\n    const builtInMatches = /\\[object ([^\\]]+)\\]/.exec(toString.call(val));\n    let className;\n    if (builtInMatches.length > 1) {\n        className = builtInMatches[1];\n    } else {\n        // Failed to match the standard '[object ClassName]'\n        return toString.call(val);\n    }\n    if (className == 'Object') {\n        // we're a user defined class or Object\n        // JSON.stringify avoids problems with cycles, and is generally much\n        // easier than looping through ownProperties of `val`.\n        try {\n            return 'Object(' + JSON.stringify(val) + ')';\n        } catch (_) {\n            return 'Object';\n        }\n    }\n    // errors\n    if (val instanceof Error) {\n        return `${val.name}: ${val.message}\\n${val.stack}`;\n    }\n    // TODO we could test for more things here, like `Set`s and `Map`s.\n    return className;\n}\n\nlet WASM_VECTOR_LEN = 0;\n\nconst cachedTextEncoder = (typeof TextEncoder !== 'undefined' ? new TextEncoder('utf-8') : { encode: () => { throw Error('TextEncoder not available') } } );\n\nconst encodeString = (typeof cachedTextEncoder.encodeInto === 'function'\n    ? function (arg, view) {\n    return cachedTextEncoder.encodeInto(arg, view);\n}\n    : function (arg, view) {\n    const buf = cachedTextEncoder.encode(arg);\n    view.set(buf);\n    return {\n        read: arg.length,\n        written: buf.length\n    };\n});\n\nfunction passStringToWasm0(arg, malloc, realloc) {\n\n    if (realloc === undefined) {\n        const buf = cachedTextEncoder.encode(arg);\n        const ptr = malloc(buf.length, 1) >>> 0;\n        getUint8Memory0().subarray(ptr, ptr + buf.length).set(buf);\n        WASM_VECTOR_LEN = buf.length;\n        return ptr;\n    }\n\n    let len = arg.length;\n    let ptr = malloc(len, 1) >>> 0;\n\n    const mem = getUint8Memory0();\n\n    let offset = 0;\n\n    for (; offset < len; offset++) {\n        const code = arg.charCodeAt(offset);\n        if (code > 0x7F) break;\n        mem[ptr + offset] = code;\n    }\n\n    if (offset !== len) {\n        if (offset !== 0) {\n            arg = arg.slice(offset);\n        }\n        ptr = realloc(ptr, len, len = offset + arg.length * 3, 1) >>> 0;\n        const view = getUint8Memory0().subarray(ptr + offset, ptr + len);\n        const ret = encodeString(arg, view);\n\n        offset += ret.written;\n    }\n\n    WASM_VECTOR_LEN = offset;\n    return ptr;\n}\n\nfunction makeMutClosure(arg0, arg1, dtor, f) {\n    const state = { a: arg0, b: arg1, cnt: 1, dtor };\n    const real = (...args) => {\n        // First up with a closure we increment the internal reference\n        // count. This ensures that the Rust closure environment won't\n        // be deallocated while we're invoking it.\n        state.cnt++;\n        const a = state.a;\n        state.a = 0;\n        try {\n            return f(a, state.b, ...args);\n        } finally {\n            if (--state.cnt === 0) {\n                wasm.__wbindgen_export_2.get(state.dtor)(a, state.b);\n\n            } else {\n                state.a = a;\n            }\n        }\n    };\n    real.original = state;\n\n    return real;\n}\n\nfunction passArray8ToWasm0(arg, malloc) {\n    const ptr = malloc(arg.length * 1, 1) >>> 0;\n    getUint8Memory0().set(arg, ptr / 1);\n    WASM_VECTOR_LEN = arg.length;\n    return ptr;\n}\nfunction __wbg_adapter_18(arg0, arg1, arg2) {\n    const ptr0 = passArray8ToWasm0(arg2, wasm.__wbindgen_malloc);\n    const len0 = WASM_VECTOR_LEN;\n    wasm.wasm_bindgen__convert__closures__invoke1_mut__h5860e381bcb9706c(arg0, arg1, ptr0, len0);\n}\n\nfunction makeClosure(arg0, arg1, dtor, f) {\n    const state = { a: arg0, b: arg1, cnt: 1, dtor };\n    const real = (...args) => {\n        // First up with a closure we increment the internal reference\n        // count. This ensures that the Rust closure environment won't\n        // be deallocated while we're invoking it.\n        state.cnt++;\n        try {\n            return f(state.a, state.b, ...args);\n        } finally {\n            if (--state.cnt === 0) {\n                wasm.__wbindgen_export_2.get(state.dtor)(state.a, state.b);\n                state.a = 0;\n\n            }\n        }\n    };\n    real.original = state;\n\n    return real;\n}\nfunction __wbg_adapter_21(arg0, arg1, arg2) {\n    wasm.wasm_bindgen__convert__closures__invoke1__h5a4fa13f3ec138ca(arg0, arg1, addHeapObject(arg2));\n}\n\nfunction getArrayU8FromWasm0(ptr, len) {\n    ptr = ptr >>> 0;\n    return getUint8Memory0().subarray(ptr / 1, ptr / 1 + len);\n}\n/**\n* @param {Uint8Array} state\n* @returns {Uint8Array}\n*/\nexport function run_ai(state) {\n    try {\n        const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);\n        const ptr0 = passArray8ToWasm0(state, wasm.__wbindgen_malloc);\n        const len0 = WASM_VECTOR_LEN;\n        wasm.run_ai(retptr, ptr0, len0);\n        var r0 = getInt32Memory0()[retptr / 4 + 0];\n        var r1 = getInt32Memory0()[retptr / 4 + 1];\n        var v2 = getArrayU8FromWasm0(r0, r1).slice();\n        wasm.__wbindgen_free(r0, r1 * 1, 1);\n        return v2;\n    } finally {\n        wasm.__wbindgen_add_to_stack_pointer(16);\n    }\n}\n\nfunction notDefined(what) { return () => { throw new Error(`${what} is not defined`); }; }\n/**\n* @returns {any}\n*/\nexport function main() {\n    const ret = wasm.main();\n    return takeObject(ret);\n}\n\nlet cachedUint32Memory0 = null;\n\nfunction getUint32Memory0() {\n    if (cachedUint32Memory0 === null || cachedUint32Memory0.byteLength === 0) {\n        cachedUint32Memory0 = new Uint32Array(wasm.memory.buffer);\n    }\n    return cachedUint32Memory0;\n}\n\nfunction getArrayJsValueFromWasm0(ptr, len) {\n    ptr = ptr >>> 0;\n    const mem = getUint32Memory0();\n    const slice = mem.subarray(ptr / 4, ptr / 4 + len);\n    const result = [];\n    for (let i = 0; i < slice.length; i++) {\n        result.push(takeObject(slice[i]));\n    }\n    return result;\n}\n\nfunction handleError(f, args) {\n    try {\n        return f.apply(this, args);\n    } catch (e) {\n        wasm.__wbindgen_exn_store(addHeapObject(e));\n    }\n}\n\nasync function __wbg_load(module, imports) {\n    if (typeof Response === 'function' && module instanceof Response) {\n        if (typeof WebAssembly.instantiateStreaming === 'function') {\n            try {\n                return await WebAssembly.instantiateStreaming(module, imports);\n\n            } catch (e) {\n                if (module.headers.get('Content-Type') != 'application/wasm') {\n                    console.warn(\"`WebAssembly.instantiateStreaming` failed because your server does not serve wasm with `application/wasm` MIME type. Falling back to `WebAssembly.instantiate` which is slower. Original error:\\n\", e);\n\n                } else {\n                    throw e;\n                }\n            }\n        }\n\n        const bytes = await module.arrayBuffer();\n        return await WebAssembly.instantiate(bytes, imports);\n\n    } else {\n        const instance = await WebAssembly.instantiate(module, imports);\n\n        if (instance instanceof WebAssembly.Instance) {\n            return { instance, module };\n\n        } else {\n            return instance;\n        }\n    }\n}\n\nfunction __wbg_get_imports() {\n    const imports = {};\n    imports.wbg = {};\n    imports.wbg.__wbindgen_object_drop_ref = function(arg0) {\n        takeObject(arg0);\n    };\n    imports.wbg.__wbindgen_object_clone_ref = function(arg0) {\n        const ret = getObject(arg0);\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_wincallback_a6a4fc5b782108cf = typeof win_callback == 'function' ? win_callback : notDefined('win_callback');\n    imports.wbg.__wbg_runaibackground_8f0429c82a23ffaf = function(arg0, arg1) {\n        var v0 = getArrayU8FromWasm0(arg0, arg1).slice();\n        wasm.__wbindgen_free(arg0, arg1 * 1, 1);\n        run_ai_background(v0);\n    };\n    imports.wbg.__wbindgen_string_new = function(arg0, arg1) {\n        const ret = getStringFromWasm0(arg0, arg1);\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbindgen_number_get = function(arg0, arg1) {\n        const obj = getObject(arg1);\n        const ret = typeof(obj) === 'number' ? obj : undefined;\n        getFloat64Memory0()[arg0 / 8 + 1] = isLikeNone(ret) ? 0 : ret;\n        getInt32Memory0()[arg0 / 4 + 0] = !isLikeNone(ret);\n    };\n    imports.wbg.__wbindgen_number_new = function(arg0) {\n        const ret = arg0;\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_new_abda76e883ba8a5f = function() {\n        const ret = new Error();\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_stack_658279fe44541cf6 = function(arg0, arg1) {\n        const ret = getObject(arg1).stack;\n        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        const len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbg_error_f851667af71bcfc6 = function(arg0, arg1) {\n        let deferred0_0;\n        let deferred0_1;\n        try {\n            deferred0_0 = arg0;\n            deferred0_1 = arg1;\n            console.error(getStringFromWasm0(arg0, arg1));\n        } finally {\n            wasm.__wbindgen_free(deferred0_0, deferred0_1, 1);\n        }\n    };\n    imports.wbg.__wbg_warn_40349716c899750a = function(arg0, arg1) {\n        var v0 = getArrayJsValueFromWasm0(arg0, arg1).slice();\n        wasm.__wbindgen_free(arg0, arg1 * 4, 4);\n        console.warn(...v0);\n    };\n    imports.wbg.__wbg_instanceof_Window_434ce1849eb4e0fc = function(arg0) {\n        let result;\n        try {\n            result = getObject(arg0) instanceof Window;\n        } catch (_) {\n            result = false;\n        }\n        const ret = result;\n        return ret;\n    };\n    imports.wbg.__wbg_body_4579ae140279af20 = function(arg0) {\n        const ret = getObject(arg0).body;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_createElement_d15f046703844f09 = function() { return handleError(function (arg0, arg1, arg2) {\n        const ret = getObject(arg0).createElement(getStringFromWasm0(arg1, arg2));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_createElementNS_11acf9c78d336078 = function() { return handleError(function (arg0, arg1, arg2, arg3, arg4) {\n        const ret = getObject(arg0).createElementNS(arg1 === 0 ? undefined : getStringFromWasm0(arg1, arg2), getStringFromWasm0(arg3, arg4));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_createTextNode_18d067bf6369a475 = function(arg0, arg1, arg2) {\n        const ret = getObject(arg0).createTextNode(getStringFromWasm0(arg1, arg2));\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_getElementById_af8feeb3fb877150 = function(arg0, arg1, arg2) {\n        const ret = getObject(arg0).getElementById(getStringFromWasm0(arg1, arg2));\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_instanceof_Element_c9423704dd5d9b1d = function(arg0) {\n        let result;\n        try {\n            result = getObject(arg0) instanceof Element;\n        } catch (_) {\n            result = false;\n        }\n        const ret = result;\n        return ret;\n    };\n    imports.wbg.__wbg_namespaceURI_9fd9462aeda0a089 = function(arg0, arg1) {\n        const ret = getObject(arg1).namespaceURI;\n        var ptr1 = isLikeNone(ret) ? 0 : passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        var len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbg_removeAttribute_8f442821de341f11 = function() { return handleError(function (arg0, arg1, arg2) {\n        getObject(arg0).removeAttribute(getStringFromWasm0(arg1, arg2));\n    }, arguments) };\n    imports.wbg.__wbg_setAttribute_fecb2c0d020f422f = function() { return handleError(function (arg0, arg1, arg2, arg3, arg4) {\n        getObject(arg0).setAttribute(getStringFromWasm0(arg1, arg2), getStringFromWasm0(arg3, arg4));\n    }, arguments) };\n    imports.wbg.__wbg_target_ee132da05a9ef949 = function(arg0) {\n        const ret = getObject(arg0).target;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_cancelBubble_5739e699df6294b0 = function(arg0) {\n        const ret = getObject(arg0).cancelBubble;\n        return ret;\n    };\n    imports.wbg.__wbg_addEventListener_1151978b9ef85f25 = function() { return handleError(function (arg0, arg1, arg2, arg3, arg4) {\n        getObject(arg0).addEventListener(getStringFromWasm0(arg1, arg2), getObject(arg3), getObject(arg4));\n    }, arguments) };\n    imports.wbg.__wbg_setchecked_b4c153b5e9fbc166 = function(arg0, arg1) {\n        getObject(arg0).checked = arg1 !== 0;\n    };\n    imports.wbg.__wbg_value_a2e4cbb5179fb3b8 = function(arg0, arg1) {\n        const ret = getObject(arg1).value;\n        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        const len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbg_setvalue_f9de54bc4a5880ce = function(arg0, arg1, arg2) {\n        getObject(arg0).value = getStringFromWasm0(arg1, arg2);\n    };\n    imports.wbg.__wbg_value_6b1ddbb6e9155da3 = function(arg0, arg1) {\n        const ret = getObject(arg1).value;\n        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        const len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbg_setvalue_5ef50a7282dd6d7e = function(arg0, arg1, arg2) {\n        getObject(arg0).value = getStringFromWasm0(arg1, arg2);\n    };\n    imports.wbg.__wbg_parentElement_5a7090f336d94c74 = function(arg0) {\n        const ret = getObject(arg0).parentElement;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_lastChild_b2bc9e1e4adf0cda = function(arg0) {\n        const ret = getObject(arg0).lastChild;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_setnodeValue_7ed608b56bb5f51b = function(arg0, arg1, arg2) {\n        getObject(arg0).nodeValue = arg1 === 0 ? undefined : getStringFromWasm0(arg1, arg2);\n    };\n    imports.wbg.__wbg_appendChild_f60942b2565cb803 = function() { return handleError(function (arg0, arg1) {\n        const ret = getObject(arg0).appendChild(getObject(arg1));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_insertBefore_d8e803d8ba9a41b8 = function() { return handleError(function (arg0, arg1, arg2) {\n        const ret = getObject(arg0).insertBefore(getObject(arg1), getObject(arg2));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_removeChild_38dc2b8a0f4f0a41 = function() { return handleError(function (arg0, arg1) {\n        const ret = getObject(arg0).removeChild(getObject(arg1));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_document_17e852b4666eac5e = function(arg0) {\n        const ret = getObject(arg0).document;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_debug_ca7d8917245536d0 = function(arg0, arg1, arg2, arg3) {\n        console.debug(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_error_1189b5de6dd1b808 = function(arg0) {\n        console.error(getObject(arg0));\n    };\n    imports.wbg.__wbg_error_4a7b91f097a233a5 = function(arg0, arg1, arg2, arg3) {\n        console.error(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_info_d4ce670cd6ec6fde = function(arg0, arg1, arg2, arg3) {\n        console.info(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_log_50738d2ca2ec904a = function(arg0, arg1, arg2, arg3) {\n        console.log(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_warn_2eee9ed96860a8b7 = function(arg0, arg1, arg2, arg3) {\n        console.warn(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_self_c4a869f7521d7b18 = function() { return handleError(function () {\n        const ret = self.self;\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_window_f76bff89ab6e4c74 = function() { return handleError(function () {\n        const ret = window.window;\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_globalThis_71824672ea2add7c = function() { return handleError(function () {\n        const ret = globalThis.globalThis;\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_global_f78549112bdb0090 = function() { return handleError(function () {\n        const ret = global.global;\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbindgen_is_undefined = function(arg0) {\n        const ret = getObject(arg0) === undefined;\n        return ret;\n    };\n    imports.wbg.__wbg_newnoargs_4cbce0ba8003ced4 = function(arg0, arg1) {\n        const ret = new Function(getStringFromWasm0(arg0, arg1));\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_call_875d4ea9abbec88f = function() { return handleError(function (arg0, arg1) {\n        const ret = getObject(arg0).call(getObject(arg1));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_get_02999bb2caeeff61 = function() { return handleError(function (arg0, arg1) {\n        const ret = Reflect.get(getObject(arg0), getObject(arg1));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_new_fc6bfaed5ca1b77a = function() {\n        const ret = new Object();\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_valueOf_b57a82897edf3264 = function(arg0) {\n        const ret = getObject(arg0).valueOf();\n        return ret;\n    };\n    imports.wbg.__wbg_is_e0a4fb92be049653 = function(arg0, arg1) {\n        const ret = Object.is(getObject(arg0), getObject(arg1));\n        return ret;\n    };\n    imports.wbg.__wbg_set_3340302df484a06c = function() { return handleError(function (arg0, arg1, arg2) {\n        const ret = Reflect.set(getObject(arg0), getObject(arg1), getObject(arg2));\n        return ret;\n    }, arguments) };\n    imports.wbg.__wbindgen_debug_string = function(arg0, arg1) {\n        const ret = debugString(getObject(arg1));\n        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        const len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbindgen_throw = function(arg0, arg1) {\n        throw new Error(getStringFromWasm0(arg0, arg1));\n    };\n    imports.wbg.__wbindgen_closure_wrapper103 = function(arg0, arg1, arg2) {\n        const ret = makeMutClosure(arg0, arg1, 6, __wbg_adapter_18);\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbindgen_closure_wrapper322 = function(arg0, arg1, arg2) {\n        const ret = makeClosure(arg0, arg1, 111, __wbg_adapter_21);\n        return addHeapObject(ret);\n    };\n\n    return imports;\n}\n\nfunction __wbg_init_memory(imports, maybe_memory) {\n\n}\n\nfunction __wbg_finalize_init(instance, module) {\n    wasm = instance.exports;\n    __wbg_init.__wbindgen_wasm_module = module;\n    cachedFloat64Memory0 = null;\n    cachedInt32Memory0 = null;\n    cachedUint32Memory0 = null;\n    cachedUint8Memory0 = null;\n\n\n    return wasm;\n}\n\nfunction initSync(module) {\n    if (wasm !== undefined) return wasm;\n\n    const imports = __wbg_get_imports();\n\n    __wbg_init_memory(imports);\n\n    if (!(module instanceof WebAssembly.Module)) {\n        module = new WebAssembly.Module(module);\n    }\n\n    const instance = new WebAssembly.Instance(module, imports);\n\n    return __wbg_finalize_init(instance, module);\n}\n\nasync function __wbg_init(input) {\n    if (wasm !== undefined) return wasm;\n\n    if (typeof input === 'undefined') {\n        input = new URL('tic_tac_toe_4d_bg.wasm', location);\n    }\n    const imports = __wbg_get_imports();\n\n    if (typeof input === 'string' || (typeof Request === 'function' && input instanceof Request) || (typeof URL === 'function' && input instanceof URL)) {\n        input = fetch(input);\n    }\n\n    __wbg_init_memory(imports);\n\n    const { instance, module } = await __wbg_load(await input, imports);\n\n    return __wbg_finalize_init(instance, module);\n}\n\nexport { initSync }\nexport default __wbg_init;\n", "import wasm_init from \"../pkg/tic_tac_toe_4d\"\nimport \"../app.css\"\nimport * as wasm_api from \"../pkg/tic_tac_toe_4d\"\n\nvar worker = new Worker(\"webworker_glue.js\")\n\nlet achievementSystem\n\nwin_callback = winner => {\n    console.log(winner)\n    if (achievementSystem) {\n        if (winner === 1) {\n            achievementSystem.unlockAchievement(`ttt4Win`)\n            achievementSystem.updateMetric(`ttt4Wins`, x => x + 1, 0)\n        } else if (winner === 2) { \n            achievementSystem.updateMetric(`ttt4Losses`, x => x + 1, 0)\n        } else if (isDraw) {\n            achievementSystem.updateMetric(`ttt4Draws`, x => x + 1, 0)\n        }\n    }\n}\n\nif (\"points\" in window) {\n    window.points.then(x => { achievementSystem = x })\n}\n\nwasm_init().then(x => {\n    const callback = wasm_api.main()\n    console.log(\"rust initiated\", callback)\n    run_ai_background = data => {\n        worker.postMessage(data)\n        console.log(\"dispatching\")\n    }\n    \n    worker.onmessage = ev => {\n        callback(ev.data)\n    }\n})"],
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+}
diff --git a/experiments/tictactoe4d/dist/assets/horiz0.svg b/experiments/tictactoe4d/dist/assets/horiz0.svg
new file mode 100644
index 0000000..9fd2d1a
--- /dev/null
+++ b/experiments/tictactoe4d/dist/assets/horiz0.svg
@@ -0,0 +1,4 @@
+<svg version="1.1" width="100" height="100" xmlns="http://www.w3.org/2000/svg">
+    <rect x="25%" width="12.5%" height="100%" fill="rgb(0 0 0 / 10%)" />
+    <rect x="75%" width="12.5%" height="100%" fill="rgb(0 0 0 / 10%)" />
+</svg>
\ No newline at end of file
diff --git a/experiments/tictactoe4d/dist/assets/horiz1.svg b/experiments/tictactoe4d/dist/assets/horiz1.svg
new file mode 100644
index 0000000..ab749d6
--- /dev/null
+++ b/experiments/tictactoe4d/dist/assets/horiz1.svg
@@ -0,0 +1,4 @@
+<svg version="1.1" width="100" height="100" xmlns="http://www.w3.org/2000/svg">
+    <rect x="25%" width="25%" height="100%" fill="rgb(0 0 0 / 10%)" />
+    <rect x="75%" width="25%" height="100%" fill="rgb(0 0 0 / 10%)" />
+</svg>
\ No newline at end of file
diff --git a/experiments/tictactoe4d/dist/assets/horiz2.svg b/experiments/tictactoe4d/dist/assets/horiz2.svg
new file mode 100644
index 0000000..cef1deb
--- /dev/null
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@@ -0,0 +1,4 @@
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new file mode 100644
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@@ -0,0 +1,4 @@
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+    <rect y="25%" height="12.5%" width="100%" fill="rgb(0 0 0 / 10%)" />
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+</svg>
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new file mode 100644
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+    <rect y="25%" height="25%" width="100%" fill="rgb(0 0 0 / 10%)" />
+    <rect y="75%" height="25%" width="100%" fill="rgb(0 0 0 / 10%)" />
+</svg>
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new file mode 100644
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new file mode 100644
index 0000000..87dd476
--- /dev/null
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+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8" />
+    <title>4D Tic-Tac-Toe</title>
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+  <body>
+    <div id="app"></div>
+    <script src="app.js"></script>
+  </body>
+</html>
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new file mode 100644
index 0000000..5bf2c91
--- /dev/null
+++ b/experiments/tictactoe4d/dist/webworker_glue.css
@@ -0,0 +1,41 @@
+/* app.css */
+.layer {
+  margin: 1em;
+  border: 1px solid #666;
+  display: inline-block;
+}
+.cell {
+  display: flex;
+  flex-direction: column;
+}
+.slot {
+  width: 2rem;
+  height: 2rem;
+  display: inline-block;
+  border: 1px solid #aaa;
+  font-size: 0.5em;
+}
+.slot-1 {
+  background: blue;
+}
+.slot-2 {
+  background: red;
+}
+.board {
+  display: flex;
+}
+.row {
+  display: flex;
+}
+.highlight {
+  width: 50%;
+  height: 50%;
+  top: 25%;
+  left: 25%;
+  position: relative;
+}
+.abspos-indicator {
+  height: 100%;
+  background-size: cover;
+}
+/*# sourceMappingURL=webworker_glue.css.map */
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new file mode 100644
index 0000000..d5b8a8c
--- /dev/null
+++ b/experiments/tictactoe4d/dist/webworker_glue.css.map
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new file mode 100644
index 0000000..f544167
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+  "version": 3,
+  "sources": ["../pkg/tic_tac_toe_4d.js", "../src/webworker_glue.js"],
+  "sourcesContent": ["let wasm;\n\nconst heap = new Array(128).fill(undefined);\n\nheap.push(undefined, null, true, false);\n\nfunction getObject(idx) { return heap[idx]; }\n\nlet heap_next = heap.length;\n\nfunction dropObject(idx) {\n    if (idx < 132) return;\n    heap[idx] = heap_next;\n    heap_next = idx;\n}\n\nfunction takeObject(idx) {\n    const ret = getObject(idx);\n    dropObject(idx);\n    return ret;\n}\n\nfunction addHeapObject(obj) {\n    if (heap_next === heap.length) heap.push(heap.length + 1);\n    const idx = heap_next;\n    heap_next = heap[idx];\n\n    heap[idx] = obj;\n    return idx;\n}\n\nconst cachedTextDecoder = (typeof TextDecoder !== 'undefined' ? new TextDecoder('utf-8', { ignoreBOM: true, fatal: true }) : { decode: () => { throw Error('TextDecoder not available') } } );\n\nif (typeof TextDecoder !== 'undefined') { cachedTextDecoder.decode(); };\n\nlet cachedUint8Memory0 = null;\n\nfunction getUint8Memory0() {\n    if (cachedUint8Memory0 === null || cachedUint8Memory0.byteLength === 0) {\n        cachedUint8Memory0 = new Uint8Array(wasm.memory.buffer);\n    }\n    return cachedUint8Memory0;\n}\n\nfunction getStringFromWasm0(ptr, len) {\n    ptr = ptr >>> 0;\n    return cachedTextDecoder.decode(getUint8Memory0().subarray(ptr, ptr + len));\n}\n\nfunction isLikeNone(x) {\n    return x === undefined || x === null;\n}\n\nlet cachedFloat64Memory0 = null;\n\nfunction getFloat64Memory0() {\n    if (cachedFloat64Memory0 === null || cachedFloat64Memory0.byteLength === 0) {\n        cachedFloat64Memory0 = new Float64Array(wasm.memory.buffer);\n    }\n    return cachedFloat64Memory0;\n}\n\nlet cachedInt32Memory0 = null;\n\nfunction getInt32Memory0() {\n    if (cachedInt32Memory0 === null || cachedInt32Memory0.byteLength === 0) {\n        cachedInt32Memory0 = new Int32Array(wasm.memory.buffer);\n    }\n    return cachedInt32Memory0;\n}\n\nfunction debugString(val) {\n    // primitive types\n    const type = typeof val;\n    if (type == 'number' || type == 'boolean' || val == null) {\n        return  `${val}`;\n    }\n    if (type == 'string') {\n        return `\"${val}\"`;\n    }\n    if (type == 'symbol') {\n        const description = val.description;\n        if (description == null) {\n            return 'Symbol';\n        } else {\n            return `Symbol(${description})`;\n        }\n    }\n    if (type == 'function') {\n        const name = val.name;\n        if (typeof name == 'string' && name.length > 0) {\n            return `Function(${name})`;\n        } else {\n            return 'Function';\n        }\n    }\n    // objects\n    if (Array.isArray(val)) {\n        const length = val.length;\n        let debug = '[';\n        if (length > 0) {\n            debug += debugString(val[0]);\n        }\n        for(let i = 1; i < length; i++) {\n            debug += ', ' + debugString(val[i]);\n        }\n        debug += ']';\n        return debug;\n    }\n    // Test for built-in\n    const builtInMatches = /\\[object ([^\\]]+)\\]/.exec(toString.call(val));\n    let className;\n    if (builtInMatches.length > 1) {\n        className = builtInMatches[1];\n    } else {\n        // Failed to match the standard '[object ClassName]'\n        return toString.call(val);\n    }\n    if (className == 'Object') {\n        // we're a user defined class or Object\n        // JSON.stringify avoids problems with cycles, and is generally much\n        // easier than looping through ownProperties of `val`.\n        try {\n            return 'Object(' + JSON.stringify(val) + ')';\n        } catch (_) {\n            return 'Object';\n        }\n    }\n    // errors\n    if (val instanceof Error) {\n        return `${val.name}: ${val.message}\\n${val.stack}`;\n    }\n    // TODO we could test for more things here, like `Set`s and `Map`s.\n    return className;\n}\n\nlet WASM_VECTOR_LEN = 0;\n\nconst cachedTextEncoder = (typeof TextEncoder !== 'undefined' ? new TextEncoder('utf-8') : { encode: () => { throw Error('TextEncoder not available') } } );\n\nconst encodeString = (typeof cachedTextEncoder.encodeInto === 'function'\n    ? function (arg, view) {\n    return cachedTextEncoder.encodeInto(arg, view);\n}\n    : function (arg, view) {\n    const buf = cachedTextEncoder.encode(arg);\n    view.set(buf);\n    return {\n        read: arg.length,\n        written: buf.length\n    };\n});\n\nfunction passStringToWasm0(arg, malloc, realloc) {\n\n    if (realloc === undefined) {\n        const buf = cachedTextEncoder.encode(arg);\n        const ptr = malloc(buf.length, 1) >>> 0;\n        getUint8Memory0().subarray(ptr, ptr + buf.length).set(buf);\n        WASM_VECTOR_LEN = buf.length;\n        return ptr;\n    }\n\n    let len = arg.length;\n    let ptr = malloc(len, 1) >>> 0;\n\n    const mem = getUint8Memory0();\n\n    let offset = 0;\n\n    for (; offset < len; offset++) {\n        const code = arg.charCodeAt(offset);\n        if (code > 0x7F) break;\n        mem[ptr + offset] = code;\n    }\n\n    if (offset !== len) {\n        if (offset !== 0) {\n            arg = arg.slice(offset);\n        }\n        ptr = realloc(ptr, len, len = offset + arg.length * 3, 1) >>> 0;\n        const view = getUint8Memory0().subarray(ptr + offset, ptr + len);\n        const ret = encodeString(arg, view);\n\n        offset += ret.written;\n    }\n\n    WASM_VECTOR_LEN = offset;\n    return ptr;\n}\n\nfunction makeMutClosure(arg0, arg1, dtor, f) {\n    const state = { a: arg0, b: arg1, cnt: 1, dtor };\n    const real = (...args) => {\n        // First up with a closure we increment the internal reference\n        // count. This ensures that the Rust closure environment won't\n        // be deallocated while we're invoking it.\n        state.cnt++;\n        const a = state.a;\n        state.a = 0;\n        try {\n            return f(a, state.b, ...args);\n        } finally {\n            if (--state.cnt === 0) {\n                wasm.__wbindgen_export_2.get(state.dtor)(a, state.b);\n\n            } else {\n                state.a = a;\n            }\n        }\n    };\n    real.original = state;\n\n    return real;\n}\n\nfunction passArray8ToWasm0(arg, malloc) {\n    const ptr = malloc(arg.length * 1, 1) >>> 0;\n    getUint8Memory0().set(arg, ptr / 1);\n    WASM_VECTOR_LEN = arg.length;\n    return ptr;\n}\nfunction __wbg_adapter_18(arg0, arg1, arg2) {\n    const ptr0 = passArray8ToWasm0(arg2, wasm.__wbindgen_malloc);\n    const len0 = WASM_VECTOR_LEN;\n    wasm.wasm_bindgen__convert__closures__invoke1_mut__h5860e381bcb9706c(arg0, arg1, ptr0, len0);\n}\n\nfunction makeClosure(arg0, arg1, dtor, f) {\n    const state = { a: arg0, b: arg1, cnt: 1, dtor };\n    const real = (...args) => {\n        // First up with a closure we increment the internal reference\n        // count. This ensures that the Rust closure environment won't\n        // be deallocated while we're invoking it.\n        state.cnt++;\n        try {\n            return f(state.a, state.b, ...args);\n        } finally {\n            if (--state.cnt === 0) {\n                wasm.__wbindgen_export_2.get(state.dtor)(state.a, state.b);\n                state.a = 0;\n\n            }\n        }\n    };\n    real.original = state;\n\n    return real;\n}\nfunction __wbg_adapter_21(arg0, arg1, arg2) {\n    wasm.wasm_bindgen__convert__closures__invoke1__h5a4fa13f3ec138ca(arg0, arg1, addHeapObject(arg2));\n}\n\nfunction getArrayU8FromWasm0(ptr, len) {\n    ptr = ptr >>> 0;\n    return getUint8Memory0().subarray(ptr / 1, ptr / 1 + len);\n}\n/**\n* @param {Uint8Array} state\n* @returns {Uint8Array}\n*/\nexport function run_ai(state) {\n    try {\n        const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);\n        const ptr0 = passArray8ToWasm0(state, wasm.__wbindgen_malloc);\n        const len0 = WASM_VECTOR_LEN;\n        wasm.run_ai(retptr, ptr0, len0);\n        var r0 = getInt32Memory0()[retptr / 4 + 0];\n        var r1 = getInt32Memory0()[retptr / 4 + 1];\n        var v2 = getArrayU8FromWasm0(r0, r1).slice();\n        wasm.__wbindgen_free(r0, r1 * 1, 1);\n        return v2;\n    } finally {\n        wasm.__wbindgen_add_to_stack_pointer(16);\n    }\n}\n\nfunction notDefined(what) { return () => { throw new Error(`${what} is not defined`); }; }\n/**\n* @returns {any}\n*/\nexport function main() {\n    const ret = wasm.main();\n    return takeObject(ret);\n}\n\nlet cachedUint32Memory0 = null;\n\nfunction getUint32Memory0() {\n    if (cachedUint32Memory0 === null || cachedUint32Memory0.byteLength === 0) {\n        cachedUint32Memory0 = new Uint32Array(wasm.memory.buffer);\n    }\n    return cachedUint32Memory0;\n}\n\nfunction getArrayJsValueFromWasm0(ptr, len) {\n    ptr = ptr >>> 0;\n    const mem = getUint32Memory0();\n    const slice = mem.subarray(ptr / 4, ptr / 4 + len);\n    const result = [];\n    for (let i = 0; i < slice.length; i++) {\n        result.push(takeObject(slice[i]));\n    }\n    return result;\n}\n\nfunction handleError(f, args) {\n    try {\n        return f.apply(this, args);\n    } catch (e) {\n        wasm.__wbindgen_exn_store(addHeapObject(e));\n    }\n}\n\nasync function __wbg_load(module, imports) {\n    if (typeof Response === 'function' && module instanceof Response) {\n        if (typeof WebAssembly.instantiateStreaming === 'function') {\n            try {\n                return await WebAssembly.instantiateStreaming(module, imports);\n\n            } catch (e) {\n                if (module.headers.get('Content-Type') != 'application/wasm') {\n                    console.warn(\"`WebAssembly.instantiateStreaming` failed because your server does not serve wasm with `application/wasm` MIME type. Falling back to `WebAssembly.instantiate` which is slower. Original error:\\n\", e);\n\n                } else {\n                    throw e;\n                }\n            }\n        }\n\n        const bytes = await module.arrayBuffer();\n        return await WebAssembly.instantiate(bytes, imports);\n\n    } else {\n        const instance = await WebAssembly.instantiate(module, imports);\n\n        if (instance instanceof WebAssembly.Instance) {\n            return { instance, module };\n\n        } else {\n            return instance;\n        }\n    }\n}\n\nfunction __wbg_get_imports() {\n    const imports = {};\n    imports.wbg = {};\n    imports.wbg.__wbindgen_object_drop_ref = function(arg0) {\n        takeObject(arg0);\n    };\n    imports.wbg.__wbindgen_object_clone_ref = function(arg0) {\n        const ret = getObject(arg0);\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_wincallback_a6a4fc5b782108cf = typeof win_callback == 'function' ? win_callback : notDefined('win_callback');\n    imports.wbg.__wbg_runaibackground_8f0429c82a23ffaf = function(arg0, arg1) {\n        var v0 = getArrayU8FromWasm0(arg0, arg1).slice();\n        wasm.__wbindgen_free(arg0, arg1 * 1, 1);\n        run_ai_background(v0);\n    };\n    imports.wbg.__wbindgen_string_new = function(arg0, arg1) {\n        const ret = getStringFromWasm0(arg0, arg1);\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbindgen_number_get = function(arg0, arg1) {\n        const obj = getObject(arg1);\n        const ret = typeof(obj) === 'number' ? obj : undefined;\n        getFloat64Memory0()[arg0 / 8 + 1] = isLikeNone(ret) ? 0 : ret;\n        getInt32Memory0()[arg0 / 4 + 0] = !isLikeNone(ret);\n    };\n    imports.wbg.__wbindgen_number_new = function(arg0) {\n        const ret = arg0;\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_new_abda76e883ba8a5f = function() {\n        const ret = new Error();\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_stack_658279fe44541cf6 = function(arg0, arg1) {\n        const ret = getObject(arg1).stack;\n        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        const len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbg_error_f851667af71bcfc6 = function(arg0, arg1) {\n        let deferred0_0;\n        let deferred0_1;\n        try {\n            deferred0_0 = arg0;\n            deferred0_1 = arg1;\n            console.error(getStringFromWasm0(arg0, arg1));\n        } finally {\n            wasm.__wbindgen_free(deferred0_0, deferred0_1, 1);\n        }\n    };\n    imports.wbg.__wbg_warn_40349716c899750a = function(arg0, arg1) {\n        var v0 = getArrayJsValueFromWasm0(arg0, arg1).slice();\n        wasm.__wbindgen_free(arg0, arg1 * 4, 4);\n        console.warn(...v0);\n    };\n    imports.wbg.__wbg_instanceof_Window_434ce1849eb4e0fc = function(arg0) {\n        let result;\n        try {\n            result = getObject(arg0) instanceof Window;\n        } catch (_) {\n            result = false;\n        }\n        const ret = result;\n        return ret;\n    };\n    imports.wbg.__wbg_body_4579ae140279af20 = function(arg0) {\n        const ret = getObject(arg0).body;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_createElement_d15f046703844f09 = function() { return handleError(function (arg0, arg1, arg2) {\n        const ret = getObject(arg0).createElement(getStringFromWasm0(arg1, arg2));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_createElementNS_11acf9c78d336078 = function() { return handleError(function (arg0, arg1, arg2, arg3, arg4) {\n        const ret = getObject(arg0).createElementNS(arg1 === 0 ? undefined : getStringFromWasm0(arg1, arg2), getStringFromWasm0(arg3, arg4));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_createTextNode_18d067bf6369a475 = function(arg0, arg1, arg2) {\n        const ret = getObject(arg0).createTextNode(getStringFromWasm0(arg1, arg2));\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_getElementById_af8feeb3fb877150 = function(arg0, arg1, arg2) {\n        const ret = getObject(arg0).getElementById(getStringFromWasm0(arg1, arg2));\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_instanceof_Element_c9423704dd5d9b1d = function(arg0) {\n        let result;\n        try {\n            result = getObject(arg0) instanceof Element;\n        } catch (_) {\n            result = false;\n        }\n        const ret = result;\n        return ret;\n    };\n    imports.wbg.__wbg_namespaceURI_9fd9462aeda0a089 = function(arg0, arg1) {\n        const ret = getObject(arg1).namespaceURI;\n        var ptr1 = isLikeNone(ret) ? 0 : passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        var len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbg_removeAttribute_8f442821de341f11 = function() { return handleError(function (arg0, arg1, arg2) {\n        getObject(arg0).removeAttribute(getStringFromWasm0(arg1, arg2));\n    }, arguments) };\n    imports.wbg.__wbg_setAttribute_fecb2c0d020f422f = function() { return handleError(function (arg0, arg1, arg2, arg3, arg4) {\n        getObject(arg0).setAttribute(getStringFromWasm0(arg1, arg2), getStringFromWasm0(arg3, arg4));\n    }, arguments) };\n    imports.wbg.__wbg_target_ee132da05a9ef949 = function(arg0) {\n        const ret = getObject(arg0).target;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_cancelBubble_5739e699df6294b0 = function(arg0) {\n        const ret = getObject(arg0).cancelBubble;\n        return ret;\n    };\n    imports.wbg.__wbg_addEventListener_1151978b9ef85f25 = function() { return handleError(function (arg0, arg1, arg2, arg3, arg4) {\n        getObject(arg0).addEventListener(getStringFromWasm0(arg1, arg2), getObject(arg3), getObject(arg4));\n    }, arguments) };\n    imports.wbg.__wbg_setchecked_b4c153b5e9fbc166 = function(arg0, arg1) {\n        getObject(arg0).checked = arg1 !== 0;\n    };\n    imports.wbg.__wbg_value_a2e4cbb5179fb3b8 = function(arg0, arg1) {\n        const ret = getObject(arg1).value;\n        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        const len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbg_setvalue_f9de54bc4a5880ce = function(arg0, arg1, arg2) {\n        getObject(arg0).value = getStringFromWasm0(arg1, arg2);\n    };\n    imports.wbg.__wbg_value_6b1ddbb6e9155da3 = function(arg0, arg1) {\n        const ret = getObject(arg1).value;\n        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        const len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbg_setvalue_5ef50a7282dd6d7e = function(arg0, arg1, arg2) {\n        getObject(arg0).value = getStringFromWasm0(arg1, arg2);\n    };\n    imports.wbg.__wbg_parentElement_5a7090f336d94c74 = function(arg0) {\n        const ret = getObject(arg0).parentElement;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_lastChild_b2bc9e1e4adf0cda = function(arg0) {\n        const ret = getObject(arg0).lastChild;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_setnodeValue_7ed608b56bb5f51b = function(arg0, arg1, arg2) {\n        getObject(arg0).nodeValue = arg1 === 0 ? undefined : getStringFromWasm0(arg1, arg2);\n    };\n    imports.wbg.__wbg_appendChild_f60942b2565cb803 = function() { return handleError(function (arg0, arg1) {\n        const ret = getObject(arg0).appendChild(getObject(arg1));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_insertBefore_d8e803d8ba9a41b8 = function() { return handleError(function (arg0, arg1, arg2) {\n        const ret = getObject(arg0).insertBefore(getObject(arg1), getObject(arg2));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_removeChild_38dc2b8a0f4f0a41 = function() { return handleError(function (arg0, arg1) {\n        const ret = getObject(arg0).removeChild(getObject(arg1));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_document_17e852b4666eac5e = function(arg0) {\n        const ret = getObject(arg0).document;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_debug_ca7d8917245536d0 = function(arg0, arg1, arg2, arg3) {\n        console.debug(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_error_1189b5de6dd1b808 = function(arg0) {\n        console.error(getObject(arg0));\n    };\n    imports.wbg.__wbg_error_4a7b91f097a233a5 = function(arg0, arg1, arg2, arg3) {\n        console.error(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_info_d4ce670cd6ec6fde = function(arg0, arg1, arg2, arg3) {\n        console.info(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_log_50738d2ca2ec904a = function(arg0, arg1, arg2, arg3) {\n        console.log(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_warn_2eee9ed96860a8b7 = function(arg0, arg1, arg2, arg3) {\n        console.warn(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_self_c4a869f7521d7b18 = function() { return handleError(function () {\n        const ret = self.self;\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_window_f76bff89ab6e4c74 = function() { return handleError(function () {\n        const ret = window.window;\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_globalThis_71824672ea2add7c = function() { return handleError(function () {\n        const ret = globalThis.globalThis;\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_global_f78549112bdb0090 = function() { return handleError(function () {\n        const ret = global.global;\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbindgen_is_undefined = function(arg0) {\n        const ret = getObject(arg0) === undefined;\n        return ret;\n    };\n    imports.wbg.__wbg_newnoargs_4cbce0ba8003ced4 = function(arg0, arg1) {\n        const ret = new Function(getStringFromWasm0(arg0, arg1));\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_call_875d4ea9abbec88f = function() { return handleError(function (arg0, arg1) {\n        const ret = getObject(arg0).call(getObject(arg1));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_get_02999bb2caeeff61 = function() { return handleError(function (arg0, arg1) {\n        const ret = Reflect.get(getObject(arg0), getObject(arg1));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_new_fc6bfaed5ca1b77a = function() {\n        const ret = new Object();\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_valueOf_b57a82897edf3264 = function(arg0) {\n        const ret = getObject(arg0).valueOf();\n        return ret;\n    };\n    imports.wbg.__wbg_is_e0a4fb92be049653 = function(arg0, arg1) {\n        const ret = Object.is(getObject(arg0), getObject(arg1));\n        return ret;\n    };\n    imports.wbg.__wbg_set_3340302df484a06c = function() { return handleError(function (arg0, arg1, arg2) {\n        const ret = Reflect.set(getObject(arg0), getObject(arg1), getObject(arg2));\n        return ret;\n    }, arguments) };\n    imports.wbg.__wbindgen_debug_string = function(arg0, arg1) {\n        const ret = debugString(getObject(arg1));\n        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        const len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbindgen_throw = function(arg0, arg1) {\n        throw new Error(getStringFromWasm0(arg0, arg1));\n    };\n    imports.wbg.__wbindgen_closure_wrapper103 = function(arg0, arg1, arg2) {\n        const ret = makeMutClosure(arg0, arg1, 6, __wbg_adapter_18);\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbindgen_closure_wrapper322 = function(arg0, arg1, arg2) {\n        const ret = makeClosure(arg0, arg1, 111, __wbg_adapter_21);\n        return addHeapObject(ret);\n    };\n\n    return imports;\n}\n\nfunction __wbg_init_memory(imports, maybe_memory) {\n\n}\n\nfunction __wbg_finalize_init(instance, module) {\n    wasm = instance.exports;\n    __wbg_init.__wbindgen_wasm_module = module;\n    cachedFloat64Memory0 = null;\n    cachedInt32Memory0 = null;\n    cachedUint32Memory0 = null;\n    cachedUint8Memory0 = null;\n\n\n    return wasm;\n}\n\nfunction initSync(module) {\n    if (wasm !== undefined) return wasm;\n\n    const imports = __wbg_get_imports();\n\n    __wbg_init_memory(imports);\n\n    if (!(module instanceof WebAssembly.Module)) {\n        module = new WebAssembly.Module(module);\n    }\n\n    const instance = new WebAssembly.Instance(module, imports);\n\n    return __wbg_finalize_init(instance, module);\n}\n\nasync function __wbg_init(input) {\n    if (wasm !== undefined) return wasm;\n\n    if (typeof input === 'undefined') {\n        input = new URL('tic_tac_toe_4d_bg.wasm', location);\n    }\n    const imports = __wbg_get_imports();\n\n    if (typeof 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+  "names": ["wasm", "heap", "getObject", "idx", "heap_next", "dropObject", "takeObject", "ret", "addHeapObject", "obj", "cachedTextDecoder", "cachedUint8Memory0", "getUint8Memory0", "getStringFromWasm0", "ptr", "len", "isLikeNone", "x", "cachedFloat64Memory0", "getFloat64Memory0", "cachedInt32Memory0", "getInt32Memory0", "debugString", "val", "type", "description", "name", "length", "debug", "i", "builtInMatches", "className", "WASM_VECTOR_LEN", "cachedTextEncoder", "encodeString", "arg", "view", "buf", "passStringToWasm0", "malloc", "realloc", "mem", "offset", "code", "makeMutClosure", "arg0", "arg1", "dtor", "f", "state", "real", "args", "a", "passArray8ToWasm0", "__wbg_adapter_18", "arg2", "ptr0", "len0", "makeClosure", "__wbg_adapter_21", "getArrayU8FromWasm0", "run_ai", "retptr", "r0", "r1", "v2", "notDefined", "what", "cachedUint32Memory0", "getUint32Memory0", "wasm", "getArrayJsValueFromWasm0", "ptr", "len", "slice", "result", "i", "takeObject", "handleError", "f", "args", "e", "addHeapObject", "__wbg_load", "module", "imports", "bytes", "instance", "__wbg_get_imports", "arg0", "ret", "getObject", "notDefined", "arg1", "v0", "getArrayU8FromWasm0", "getStringFromWasm0", "obj", "getFloat64Memory0", "isLikeNone", "getInt32Memory0", "ptr1", "passStringToWasm0", "len1", "WASM_VECTOR_LEN", "deferred0_0", "deferred0_1", "arg2", "arg3", "arg4", "debugString", "makeMutClosure", "__wbg_adapter_18", "makeClosure", "__wbg_adapter_21", "__wbg_finalize_init", "instance", "module", "wasm", "__wbg_init", "cachedFloat64Memory0", "cachedInt32Memory0", "cachedUint32Memory0", "cachedUint8Memory0", "__wbg_init", "input", "wasm", "imports", "__wbg_get_imports", "instance", "module", "__wbg_load", "__wbg_finalize_init", "tic_tac_toe_4d_default", "__wbg_init", "tic_tac_toe_4d_default", "x", "event", "run_ai"]
+}
diff --git a/experiments/tictactoe4d/index.html b/experiments/tictactoe4d/index.html
new file mode 100644
index 0000000..9dca710
--- /dev/null
+++ b/experiments/tictactoe4d/index.html
@@ -0,0 +1,8 @@
+---
+title: Tic-Tac-Toe (4⁴)
+description: More dimensions. More confusion. Somewhat worse performance. 4D Tic-Tac-Toe.
+slug: tictactoe4
+---
+<link rel="stylesheet" href="app.css">
+<div id="app"></div>
+<script src="app.js"></script>
\ No newline at end of file
diff --git a/experiments/tictactoe4d/tic_tac_toe_4d_bg.wasm b/experiments/tictactoe4d/tic_tac_toe_4d_bg.wasm
new file mode 100644
index 0000000..b082530
Binary files /dev/null and b/experiments/tictactoe4d/tic_tac_toe_4d_bg.wasm differ
diff --git a/experiments/tictactoe4d/webworker_glue.css b/experiments/tictactoe4d/webworker_glue.css
new file mode 100644
index 0000000..5bf2c91
--- /dev/null
+++ b/experiments/tictactoe4d/webworker_glue.css
@@ -0,0 +1,41 @@
+/* app.css */
+.layer {
+  margin: 1em;
+  border: 1px solid #666;
+  display: inline-block;
+}
+.cell {
+  display: flex;
+  flex-direction: column;
+}
+.slot {
+  width: 2rem;
+  height: 2rem;
+  display: inline-block;
+  border: 1px solid #aaa;
+  font-size: 0.5em;
+}
+.slot-1 {
+  background: blue;
+}
+.slot-2 {
+  background: red;
+}
+.board {
+  display: flex;
+}
+.row {
+  display: flex;
+}
+.highlight {
+  width: 50%;
+  height: 50%;
+  top: 25%;
+  left: 25%;
+  position: relative;
+}
+.abspos-indicator {
+  height: 100%;
+  background-size: cover;
+}
+/*# sourceMappingURL=webworker_glue.css.map */
diff --git a/experiments/tictactoe4d/webworker_glue.css.map b/experiments/tictactoe4d/webworker_glue.css.map
new file mode 100644
index 0000000..d5b8a8c
--- /dev/null
+++ b/experiments/tictactoe4d/webworker_glue.css.map
@@ -0,0 +1,7 @@
+{
+  "version": 3,
+  "sources": ["../app.css"],
+  "sourcesContent": [".layer {\n    margin: 1em;\n    border: 1px solid #666;\n    display: inline-block;\n}\n.cell {\n    display: flex;\n    flex-direction: column;\n}\n.slot {\n    width: 2rem;\n    height: 2rem;\n    display: inline-block;\n    border: 1px solid #aaa;\n    font-size: 0.5em;\n}\n.slot-1 {\n    background: blue;\n}\n.slot-2 {\n    background: red;\n}\n.board {\n    display: flex;\n}\n.row {\n    display: flex;\n}\n.highlight {\n    width: 50%;\n    height: 50%;\n    top: 25%;\n    left: 25%;\n    position: relative;\n}\n.abspos-indicator {\n    height: 100%;\n    background-size: cover;\n}"],
+  "mappings": ";AAAA,CAAC;AACG,UAAQ;AACR,UAAQ,IAAI,MAAM;AAClB,WAAS;AACb;AACA,CAAC;AACG,WAAS;AACT,kBAAgB;AACpB;AACA,CAAC;AACG,SAAO;AACP,UAAQ;AACR,WAAS;AACT,UAAQ,IAAI,MAAM;AAClB,aAAW;AACf;AACA,CAAC;AACG,cAAY;AAChB;AACA,CAAC;AACG,cAAY;AAChB;AACA,CAAC;AACG,WAAS;AACb;AACA,CAAC;AACG,WAAS;AACb;AACA,CAAC;AACG,SAAO;AACP,UAAQ;AACR,OAAK;AACL,QAAM;AACN,YAAU;AACd;AACA,CAAC;AACG,UAAQ;AACR,mBAAiB;AACrB;",
+  "names": []
+}
diff --git a/experiments/tictactoe4d/webworker_glue.js b/experiments/tictactoe4d/webworker_glue.js
new file mode 100644
index 0000000..34c8da8
--- /dev/null
+++ b/experiments/tictactoe4d/webworker_glue.js
@@ -0,0 +1,3 @@
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+//# sourceMappingURL=webworker_glue.js.map
diff --git a/experiments/tictactoe4d/webworker_glue.js.map b/experiments/tictactoe4d/webworker_glue.js.map
new file mode 100644
index 0000000..b89eb57
--- /dev/null
+++ b/experiments/tictactoe4d/webworker_glue.js.map
@@ -0,0 +1,7 @@
+{
+  "version": 3,
+  "sources": ["../pkg/tic_tac_toe_4d.js", "../src/webworker_glue.js"],
+  "sourcesContent": ["let wasm;\n\nconst heap = new Array(128).fill(undefined);\n\nheap.push(undefined, null, true, false);\n\nfunction getObject(idx) { return heap[idx]; }\n\nlet heap_next = heap.length;\n\nfunction dropObject(idx) {\n    if (idx < 132) return;\n    heap[idx] = heap_next;\n    heap_next = idx;\n}\n\nfunction takeObject(idx) {\n    const ret = getObject(idx);\n    dropObject(idx);\n    return ret;\n}\n\nfunction addHeapObject(obj) {\n    if (heap_next === heap.length) heap.push(heap.length + 1);\n    const idx = heap_next;\n    heap_next = heap[idx];\n\n    heap[idx] = obj;\n    return idx;\n}\n\nconst cachedTextDecoder = (typeof TextDecoder !== 'undefined' ? new TextDecoder('utf-8', { ignoreBOM: true, fatal: true }) : { decode: () => { throw Error('TextDecoder not available') } } );\n\nif (typeof TextDecoder !== 'undefined') { cachedTextDecoder.decode(); };\n\nlet cachedUint8Memory0 = null;\n\nfunction getUint8Memory0() {\n    if (cachedUint8Memory0 === null || cachedUint8Memory0.byteLength === 0) {\n        cachedUint8Memory0 = new Uint8Array(wasm.memory.buffer);\n    }\n    return cachedUint8Memory0;\n}\n\nfunction getStringFromWasm0(ptr, len) {\n    ptr = ptr >>> 0;\n    return cachedTextDecoder.decode(getUint8Memory0().subarray(ptr, ptr + len));\n}\n\nfunction isLikeNone(x) {\n    return x === undefined || x === null;\n}\n\nlet cachedFloat64Memory0 = null;\n\nfunction getFloat64Memory0() {\n    if (cachedFloat64Memory0 === null || cachedFloat64Memory0.byteLength === 0) {\n        cachedFloat64Memory0 = new Float64Array(wasm.memory.buffer);\n    }\n    return cachedFloat64Memory0;\n}\n\nlet cachedInt32Memory0 = null;\n\nfunction getInt32Memory0() {\n    if (cachedInt32Memory0 === null || cachedInt32Memory0.byteLength === 0) {\n        cachedInt32Memory0 = new Int32Array(wasm.memory.buffer);\n    }\n    return cachedInt32Memory0;\n}\n\nfunction debugString(val) {\n    // primitive types\n    const type = typeof val;\n    if (type == 'number' || type == 'boolean' || val == null) {\n        return  `${val}`;\n    }\n    if (type == 'string') {\n        return `\"${val}\"`;\n    }\n    if (type == 'symbol') {\n        const description = val.description;\n        if (description == null) {\n            return 'Symbol';\n        } else {\n            return `Symbol(${description})`;\n        }\n    }\n    if (type == 'function') {\n        const name = val.name;\n        if (typeof name == 'string' && name.length > 0) {\n            return `Function(${name})`;\n        } else {\n            return 'Function';\n        }\n    }\n    // objects\n    if (Array.isArray(val)) {\n        const length = val.length;\n        let debug = '[';\n        if (length > 0) {\n            debug += debugString(val[0]);\n        }\n        for(let i = 1; i < length; i++) {\n            debug += ', ' + debugString(val[i]);\n        }\n        debug += ']';\n        return debug;\n    }\n    // Test for built-in\n    const builtInMatches = /\\[object ([^\\]]+)\\]/.exec(toString.call(val));\n    let className;\n    if (builtInMatches.length > 1) {\n        className = builtInMatches[1];\n    } else {\n        // Failed to match the standard '[object ClassName]'\n        return toString.call(val);\n    }\n    if (className == 'Object') {\n        // we're a user defined class or Object\n        // JSON.stringify avoids problems with cycles, and is generally much\n        // easier than looping through ownProperties of `val`.\n        try {\n            return 'Object(' + JSON.stringify(val) + ')';\n        } catch (_) {\n            return 'Object';\n        }\n    }\n    // errors\n    if (val instanceof Error) {\n        return `${val.name}: ${val.message}\\n${val.stack}`;\n    }\n    // TODO we could test for more things here, like `Set`s and `Map`s.\n    return className;\n}\n\nlet WASM_VECTOR_LEN = 0;\n\nconst cachedTextEncoder = (typeof TextEncoder !== 'undefined' ? new TextEncoder('utf-8') : { encode: () => { throw Error('TextEncoder not available') } } );\n\nconst encodeString = (typeof cachedTextEncoder.encodeInto === 'function'\n    ? function (arg, view) {\n    return cachedTextEncoder.encodeInto(arg, view);\n}\n    : function (arg, view) {\n    const buf = cachedTextEncoder.encode(arg);\n    view.set(buf);\n    return {\n        read: arg.length,\n        written: buf.length\n    };\n});\n\nfunction passStringToWasm0(arg, malloc, realloc) {\n\n    if (realloc === undefined) {\n        const buf = cachedTextEncoder.encode(arg);\n        const ptr = malloc(buf.length, 1) >>> 0;\n        getUint8Memory0().subarray(ptr, ptr + buf.length).set(buf);\n        WASM_VECTOR_LEN = buf.length;\n        return ptr;\n    }\n\n    let len = arg.length;\n    let ptr = malloc(len, 1) >>> 0;\n\n    const mem = getUint8Memory0();\n\n    let offset = 0;\n\n    for (; offset < len; offset++) {\n        const code = arg.charCodeAt(offset);\n        if (code > 0x7F) break;\n        mem[ptr + offset] = code;\n    }\n\n    if (offset !== len) {\n        if (offset !== 0) {\n            arg = arg.slice(offset);\n        }\n        ptr = realloc(ptr, len, len = offset + arg.length * 3, 1) >>> 0;\n        const view = getUint8Memory0().subarray(ptr + offset, ptr + len);\n        const ret = encodeString(arg, view);\n\n        offset += ret.written;\n    }\n\n    WASM_VECTOR_LEN = offset;\n    return ptr;\n}\n\nfunction makeMutClosure(arg0, arg1, dtor, f) {\n    const state = { a: arg0, b: arg1, cnt: 1, dtor };\n    const real = (...args) => {\n        // First up with a closure we increment the internal reference\n        // count. This ensures that the Rust closure environment won't\n        // be deallocated while we're invoking it.\n        state.cnt++;\n        const a = state.a;\n        state.a = 0;\n        try {\n            return f(a, state.b, ...args);\n        } finally {\n            if (--state.cnt === 0) {\n                wasm.__wbindgen_export_2.get(state.dtor)(a, state.b);\n\n            } else {\n                state.a = a;\n            }\n        }\n    };\n    real.original = state;\n\n    return real;\n}\n\nfunction passArray8ToWasm0(arg, malloc) {\n    const ptr = malloc(arg.length * 1, 1) >>> 0;\n    getUint8Memory0().set(arg, ptr / 1);\n    WASM_VECTOR_LEN = arg.length;\n    return ptr;\n}\nfunction __wbg_adapter_18(arg0, arg1, arg2) {\n    const ptr0 = passArray8ToWasm0(arg2, wasm.__wbindgen_malloc);\n    const len0 = WASM_VECTOR_LEN;\n    wasm.wasm_bindgen__convert__closures__invoke1_mut__h5860e381bcb9706c(arg0, arg1, ptr0, len0);\n}\n\nfunction makeClosure(arg0, arg1, dtor, f) {\n    const state = { a: arg0, b: arg1, cnt: 1, dtor };\n    const real = (...args) => {\n        // First up with a closure we increment the internal reference\n        // count. This ensures that the Rust closure environment won't\n        // be deallocated while we're invoking it.\n        state.cnt++;\n        try {\n            return f(state.a, state.b, ...args);\n        } finally {\n            if (--state.cnt === 0) {\n                wasm.__wbindgen_export_2.get(state.dtor)(state.a, state.b);\n                state.a = 0;\n\n            }\n        }\n    };\n    real.original = state;\n\n    return real;\n}\nfunction __wbg_adapter_21(arg0, arg1, arg2) {\n    wasm.wasm_bindgen__convert__closures__invoke1__h5a4fa13f3ec138ca(arg0, arg1, addHeapObject(arg2));\n}\n\nfunction getArrayU8FromWasm0(ptr, len) {\n    ptr = ptr >>> 0;\n    return getUint8Memory0().subarray(ptr / 1, ptr / 1 + len);\n}\n/**\n* @param {Uint8Array} state\n* @returns {Uint8Array}\n*/\nexport function run_ai(state) {\n    try {\n        const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);\n        const ptr0 = passArray8ToWasm0(state, wasm.__wbindgen_malloc);\n        const len0 = WASM_VECTOR_LEN;\n        wasm.run_ai(retptr, ptr0, len0);\n        var r0 = getInt32Memory0()[retptr / 4 + 0];\n        var r1 = getInt32Memory0()[retptr / 4 + 1];\n        var v2 = getArrayU8FromWasm0(r0, r1).slice();\n        wasm.__wbindgen_free(r0, r1 * 1, 1);\n        return v2;\n    } finally {\n        wasm.__wbindgen_add_to_stack_pointer(16);\n    }\n}\n\nfunction notDefined(what) { return () => { throw new Error(`${what} is not defined`); }; }\n/**\n* @returns {any}\n*/\nexport function main() {\n    const ret = wasm.main();\n    return takeObject(ret);\n}\n\nlet cachedUint32Memory0 = null;\n\nfunction getUint32Memory0() {\n    if (cachedUint32Memory0 === null || cachedUint32Memory0.byteLength === 0) {\n        cachedUint32Memory0 = new Uint32Array(wasm.memory.buffer);\n    }\n    return cachedUint32Memory0;\n}\n\nfunction getArrayJsValueFromWasm0(ptr, len) {\n    ptr = ptr >>> 0;\n    const mem = getUint32Memory0();\n    const slice = mem.subarray(ptr / 4, ptr / 4 + len);\n    const result = [];\n    for (let i = 0; i < slice.length; i++) {\n        result.push(takeObject(slice[i]));\n    }\n    return result;\n}\n\nfunction handleError(f, args) {\n    try {\n        return f.apply(this, args);\n    } catch (e) {\n        wasm.__wbindgen_exn_store(addHeapObject(e));\n    }\n}\n\nasync function __wbg_load(module, imports) {\n    if (typeof Response === 'function' && module instanceof Response) {\n        if (typeof WebAssembly.instantiateStreaming === 'function') {\n            try {\n                return await WebAssembly.instantiateStreaming(module, imports);\n\n            } catch (e) {\n                if (module.headers.get('Content-Type') != 'application/wasm') {\n                    console.warn(\"`WebAssembly.instantiateStreaming` failed because your server does not serve wasm with `application/wasm` MIME type. Falling back to `WebAssembly.instantiate` which is slower. Original error:\\n\", e);\n\n                } else {\n                    throw e;\n                }\n            }\n        }\n\n        const bytes = await module.arrayBuffer();\n        return await WebAssembly.instantiate(bytes, imports);\n\n    } else {\n        const instance = await WebAssembly.instantiate(module, imports);\n\n        if (instance instanceof WebAssembly.Instance) {\n            return { instance, module };\n\n        } else {\n            return instance;\n        }\n    }\n}\n\nfunction __wbg_get_imports() {\n    const imports = {};\n    imports.wbg = {};\n    imports.wbg.__wbindgen_object_drop_ref = function(arg0) {\n        takeObject(arg0);\n    };\n    imports.wbg.__wbindgen_object_clone_ref = function(arg0) {\n        const ret = getObject(arg0);\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_wincallback_a6a4fc5b782108cf = typeof win_callback == 'function' ? win_callback : notDefined('win_callback');\n    imports.wbg.__wbg_runaibackground_8f0429c82a23ffaf = function(arg0, arg1) {\n        var v0 = getArrayU8FromWasm0(arg0, arg1).slice();\n        wasm.__wbindgen_free(arg0, arg1 * 1, 1);\n        run_ai_background(v0);\n    };\n    imports.wbg.__wbindgen_string_new = function(arg0, arg1) {\n        const ret = getStringFromWasm0(arg0, arg1);\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbindgen_number_get = function(arg0, arg1) {\n        const obj = getObject(arg1);\n        const ret = typeof(obj) === 'number' ? obj : undefined;\n        getFloat64Memory0()[arg0 / 8 + 1] = isLikeNone(ret) ? 0 : ret;\n        getInt32Memory0()[arg0 / 4 + 0] = !isLikeNone(ret);\n    };\n    imports.wbg.__wbindgen_number_new = function(arg0) {\n        const ret = arg0;\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_new_abda76e883ba8a5f = function() {\n        const ret = new Error();\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_stack_658279fe44541cf6 = function(arg0, arg1) {\n        const ret = getObject(arg1).stack;\n        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        const len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbg_error_f851667af71bcfc6 = function(arg0, arg1) {\n        let deferred0_0;\n        let deferred0_1;\n        try {\n            deferred0_0 = arg0;\n            deferred0_1 = arg1;\n            console.error(getStringFromWasm0(arg0, arg1));\n        } finally {\n            wasm.__wbindgen_free(deferred0_0, deferred0_1, 1);\n        }\n    };\n    imports.wbg.__wbg_warn_40349716c899750a = function(arg0, arg1) {\n        var v0 = getArrayJsValueFromWasm0(arg0, arg1).slice();\n        wasm.__wbindgen_free(arg0, arg1 * 4, 4);\n        console.warn(...v0);\n    };\n    imports.wbg.__wbg_instanceof_Window_434ce1849eb4e0fc = function(arg0) {\n        let result;\n        try {\n            result = getObject(arg0) instanceof Window;\n        } catch (_) {\n            result = false;\n        }\n        const ret = result;\n        return ret;\n    };\n    imports.wbg.__wbg_body_4579ae140279af20 = function(arg0) {\n        const ret = getObject(arg0).body;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_createElement_d15f046703844f09 = function() { return handleError(function (arg0, arg1, arg2) {\n        const ret = getObject(arg0).createElement(getStringFromWasm0(arg1, arg2));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_createElementNS_11acf9c78d336078 = function() { return handleError(function (arg0, arg1, arg2, arg3, arg4) {\n        const ret = getObject(arg0).createElementNS(arg1 === 0 ? undefined : getStringFromWasm0(arg1, arg2), getStringFromWasm0(arg3, arg4));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_createTextNode_18d067bf6369a475 = function(arg0, arg1, arg2) {\n        const ret = getObject(arg0).createTextNode(getStringFromWasm0(arg1, arg2));\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_getElementById_af8feeb3fb877150 = function(arg0, arg1, arg2) {\n        const ret = getObject(arg0).getElementById(getStringFromWasm0(arg1, arg2));\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_instanceof_Element_c9423704dd5d9b1d = function(arg0) {\n        let result;\n        try {\n            result = getObject(arg0) instanceof Element;\n        } catch (_) {\n            result = false;\n        }\n        const ret = result;\n        return ret;\n    };\n    imports.wbg.__wbg_namespaceURI_9fd9462aeda0a089 = function(arg0, arg1) {\n        const ret = getObject(arg1).namespaceURI;\n        var ptr1 = isLikeNone(ret) ? 0 : passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        var len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbg_removeAttribute_8f442821de341f11 = function() { return handleError(function (arg0, arg1, arg2) {\n        getObject(arg0).removeAttribute(getStringFromWasm0(arg1, arg2));\n    }, arguments) };\n    imports.wbg.__wbg_setAttribute_fecb2c0d020f422f = function() { return handleError(function (arg0, arg1, arg2, arg3, arg4) {\n        getObject(arg0).setAttribute(getStringFromWasm0(arg1, arg2), getStringFromWasm0(arg3, arg4));\n    }, arguments) };\n    imports.wbg.__wbg_target_ee132da05a9ef949 = function(arg0) {\n        const ret = getObject(arg0).target;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_cancelBubble_5739e699df6294b0 = function(arg0) {\n        const ret = getObject(arg0).cancelBubble;\n        return ret;\n    };\n    imports.wbg.__wbg_addEventListener_1151978b9ef85f25 = function() { return handleError(function (arg0, arg1, arg2, arg3, arg4) {\n        getObject(arg0).addEventListener(getStringFromWasm0(arg1, arg2), getObject(arg3), getObject(arg4));\n    }, arguments) };\n    imports.wbg.__wbg_setchecked_b4c153b5e9fbc166 = function(arg0, arg1) {\n        getObject(arg0).checked = arg1 !== 0;\n    };\n    imports.wbg.__wbg_value_a2e4cbb5179fb3b8 = function(arg0, arg1) {\n        const ret = getObject(arg1).value;\n        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        const len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbg_setvalue_f9de54bc4a5880ce = function(arg0, arg1, arg2) {\n        getObject(arg0).value = getStringFromWasm0(arg1, arg2);\n    };\n    imports.wbg.__wbg_value_6b1ddbb6e9155da3 = function(arg0, arg1) {\n        const ret = getObject(arg1).value;\n        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        const len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbg_setvalue_5ef50a7282dd6d7e = function(arg0, arg1, arg2) {\n        getObject(arg0).value = getStringFromWasm0(arg1, arg2);\n    };\n    imports.wbg.__wbg_parentElement_5a7090f336d94c74 = function(arg0) {\n        const ret = getObject(arg0).parentElement;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_lastChild_b2bc9e1e4adf0cda = function(arg0) {\n        const ret = getObject(arg0).lastChild;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_setnodeValue_7ed608b56bb5f51b = function(arg0, arg1, arg2) {\n        getObject(arg0).nodeValue = arg1 === 0 ? undefined : getStringFromWasm0(arg1, arg2);\n    };\n    imports.wbg.__wbg_appendChild_f60942b2565cb803 = function() { return handleError(function (arg0, arg1) {\n        const ret = getObject(arg0).appendChild(getObject(arg1));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_insertBefore_d8e803d8ba9a41b8 = function() { return handleError(function (arg0, arg1, arg2) {\n        const ret = getObject(arg0).insertBefore(getObject(arg1), getObject(arg2));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_removeChild_38dc2b8a0f4f0a41 = function() { return handleError(function (arg0, arg1) {\n        const ret = getObject(arg0).removeChild(getObject(arg1));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_document_17e852b4666eac5e = function(arg0) {\n        const ret = getObject(arg0).document;\n        return isLikeNone(ret) ? 0 : addHeapObject(ret);\n    };\n    imports.wbg.__wbg_debug_ca7d8917245536d0 = function(arg0, arg1, arg2, arg3) {\n        console.debug(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_error_1189b5de6dd1b808 = function(arg0) {\n        console.error(getObject(arg0));\n    };\n    imports.wbg.__wbg_error_4a7b91f097a233a5 = function(arg0, arg1, arg2, arg3) {\n        console.error(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_info_d4ce670cd6ec6fde = function(arg0, arg1, arg2, arg3) {\n        console.info(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_log_50738d2ca2ec904a = function(arg0, arg1, arg2, arg3) {\n        console.log(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_warn_2eee9ed96860a8b7 = function(arg0, arg1, arg2, arg3) {\n        console.warn(getObject(arg0), getObject(arg1), getObject(arg2), getObject(arg3));\n    };\n    imports.wbg.__wbg_self_c4a869f7521d7b18 = function() { return handleError(function () {\n        const ret = self.self;\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_window_f76bff89ab6e4c74 = function() { return handleError(function () {\n        const ret = window.window;\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_globalThis_71824672ea2add7c = function() { return handleError(function () {\n        const ret = globalThis.globalThis;\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_global_f78549112bdb0090 = function() { return handleError(function () {\n        const ret = global.global;\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbindgen_is_undefined = function(arg0) {\n        const ret = getObject(arg0) === undefined;\n        return ret;\n    };\n    imports.wbg.__wbg_newnoargs_4cbce0ba8003ced4 = function(arg0, arg1) {\n        const ret = new Function(getStringFromWasm0(arg0, arg1));\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_call_875d4ea9abbec88f = function() { return handleError(function (arg0, arg1) {\n        const ret = getObject(arg0).call(getObject(arg1));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_get_02999bb2caeeff61 = function() { return handleError(function (arg0, arg1) {\n        const ret = Reflect.get(getObject(arg0), getObject(arg1));\n        return addHeapObject(ret);\n    }, arguments) };\n    imports.wbg.__wbg_new_fc6bfaed5ca1b77a = function() {\n        const ret = new Object();\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbg_valueOf_b57a82897edf3264 = function(arg0) {\n        const ret = getObject(arg0).valueOf();\n        return ret;\n    };\n    imports.wbg.__wbg_is_e0a4fb92be049653 = function(arg0, arg1) {\n        const ret = Object.is(getObject(arg0), getObject(arg1));\n        return ret;\n    };\n    imports.wbg.__wbg_set_3340302df484a06c = function() { return handleError(function (arg0, arg1, arg2) {\n        const ret = Reflect.set(getObject(arg0), getObject(arg1), getObject(arg2));\n        return ret;\n    }, arguments) };\n    imports.wbg.__wbindgen_debug_string = function(arg0, arg1) {\n        const ret = debugString(getObject(arg1));\n        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);\n        const len1 = WASM_VECTOR_LEN;\n        getInt32Memory0()[arg0 / 4 + 1] = len1;\n        getInt32Memory0()[arg0 / 4 + 0] = ptr1;\n    };\n    imports.wbg.__wbindgen_throw = function(arg0, arg1) {\n        throw new Error(getStringFromWasm0(arg0, arg1));\n    };\n    imports.wbg.__wbindgen_closure_wrapper106 = function(arg0, arg1, arg2) {\n        const ret = makeMutClosure(arg0, arg1, 6, __wbg_adapter_18);\n        return addHeapObject(ret);\n    };\n    imports.wbg.__wbindgen_closure_wrapper334 = function(arg0, arg1, arg2) {\n        const ret = makeClosure(arg0, arg1, 119, __wbg_adapter_21);\n        return addHeapObject(ret);\n    };\n\n    return imports;\n}\n\nfunction __wbg_init_memory(imports, maybe_memory) {\n\n}\n\nfunction __wbg_finalize_init(instance, module) {\n    wasm = instance.exports;\n    __wbg_init.__wbindgen_wasm_module = module;\n    cachedFloat64Memory0 = null;\n    cachedInt32Memory0 = null;\n    cachedUint32Memory0 = null;\n    cachedUint8Memory0 = null;\n\n\n    return wasm;\n}\n\nfunction initSync(module) {\n    if (wasm !== undefined) return wasm;\n\n    const imports = __wbg_get_imports();\n\n    __wbg_init_memory(imports);\n\n    if (!(module instanceof WebAssembly.Module)) {\n        module = new WebAssembly.Module(module);\n    }\n\n    const instance = new WebAssembly.Instance(module, imports);\n\n    return __wbg_finalize_init(instance, module);\n}\n\nasync function __wbg_init(input) {\n    if (wasm !== undefined) return wasm;\n\n    if (typeof input === 'undefined') {\n        input = new URL('tic_tac_toe_4d_bg.wasm', location);\n    }\n    const imports = __wbg_get_imports();\n\n    if (typeof input === 'string' || (typeof Request === 'function' && input instanceof Request) || (typeof URL === 'function' && input instanceof URL)) {\n        input = fetch(input);\n    }\n\n    __wbg_init_memory(imports);\n\n    const { instance, module } = await __wbg_load(await input, imports);\n\n    return __wbg_finalize_init(instance, module);\n}\n\nexport { initSync }\nexport default __wbg_init;\n", "import wasm_init from \"../pkg/tic_tac_toe_4d\"\nimport * as wasm_api from \"../pkg/tic_tac_toe_4d\"\n\nwasm_init().then(x => {\n    onmessage = event => {\n        postMessage(wasm_api.run_ai(event.data))\n    }\n    console.log(\"background execution ready\")\n})"],
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+  "names": ["wasm", "heap", "getObject", "idx", "heap_next", "dropObject", "takeObject", "ret", "addHeapObject", "obj", "cachedTextDecoder", "cachedUint8Memory0", "getUint8Memory0", "getStringFromWasm0", "ptr", "len", "isLikeNone", "x", "cachedFloat64Memory0", "getFloat64Memory0", "cachedInt32Memory0", "getInt32Memory0", "debugString", "val", "type", "description", "name", "length", "debug", "i", "builtInMatches", "className", "WASM_VECTOR_LEN", "cachedTextEncoder", "encodeString", "arg", "view", "buf", "passStringToWasm0", "malloc", "realloc", "mem", "offset", "code", "makeMutClosure", "arg0", "arg1", "dtor", "f", "state", "real", "args", "a", "passArray8ToWasm0", "__wbg_adapter_18", "arg2", "ptr0", "len0", "makeClosure", "__wbg_adapter_21", "getArrayU8FromWasm0", "run_ai", "retptr", "r0", "r1", "v2", "notDefined", "what", "cachedUint32Memory0", "getUint32Memory0", "wasm", "getArrayJsValueFromWasm0", "ptr", "len", "slice", "result", "i", "takeObject", "handleError", "f", "args", "e", "addHeapObject", "__wbg_load", "module", "imports", "bytes", "instance", "__wbg_get_imports", "arg0", "ret", "getObject", "notDefined", "arg1", "v0", "getArrayU8FromWasm0", "getStringFromWasm0", "obj", "getFloat64Memory0", "isLikeNone", "getInt32Memory0", "ptr1", "passStringToWasm0", "len1", "WASM_VECTOR_LEN", "deferred0_0", "deferred0_1", "arg2", "arg3", "arg4", "debugString", "makeMutClosure", "__wbg_adapter_18", "makeClosure", "__wbg_adapter_21", "__wbg_finalize_init", "instance", "module", "wasm", "__wbg_init", "cachedFloat64Memory0", "cachedInt32Memory0", "cachedUint32Memory0", "cachedUint8Memory0", "__wbg_init", "input", "wasm", "imports", "__wbg_get_imports", "instance", "module", "__wbg_load", "__wbg_finalize_init", "tic_tac_toe_4d_default", "__wbg_init", "tic_tac_toe_4d_default", "x", "event", "run_ai"]
+}
diff --git a/src/page.js b/src/page.js
index b798d05..56a3e22 100644
--- a/src/page.js
+++ b/src/page.js
@@ -151,6 +151,12 @@ window.points = (async () => {
             conditions: "Recurse to a stack depth of 100 or more on RPNCalc v4",
             description: "For using RPNCalcV4 as it is meant to be used - highly, highly recursively.",
             points: 18.324
+        },
+        ttt4Win: {
+            title: "Shape Rotator",
+            conditions: "Win 4D Tic-Tac-Toe",
+            description: "You won a game of 4D Tic-Tac-Toe against our highly advanced artificial intelligence, showing your utter comprehension of 4D space.",
+            points: 37.9
         }
     }
 
@@ -407,21 +413,21 @@ if (sidenotes && footnotes) {
             const notes = []
             // read off sidenotes to place
             for (const item of footnoteItems) {
-                const itemRect = item.getBoundingClientRect()
                 const link = article.querySelector(`#${item.id.replace(/^fn/, "fnref")}`)
                 const linkRect = link.getBoundingClientRect()
                 item.style.position = "absolute"
                 item.style.left = getComputedStyle(sidenotes).paddingLeft
-                item.style.marginBottom = item.style.marginTop = `${BORDER / 2}px`
+                item.style.paddingBottom = item.style.paddingTop = `${BORDER / 2}px`
+                const itemRect = item.getBoundingClientRect()
                 notes.push({
                     item,
-                    height: itemRect.height + BORDER,
+                    height: itemRect.height,
                     target: linkRect.top - snRect.top
                 })
             }
             // preliminary placement: place in valid regions going down
             for (const note of notes) {
-                const index = inclusions.findLastIndex(inc => (inc.start + note.height) < note.target)
+                const index = Math.max(inclusions.findLastIndex(inc => (inc.start + note.height) < note.target), 0)
                 const next = inclusions.slice(index)
                     .findIndex(inc => (sum(inc.contents.map(x => x.height)) + note.height) < (inc.end - inc.start))
                 inclusions[index + next].contents.push(note)
@@ -506,6 +512,22 @@ if (sidenotes && footnotes) {
     window.relayout = relayout
 }
 
+const fixDetailsSummary = () => {
+    const el = document.getElementById(window.location.hash.slice(1))
+    var parent = el
+    if (!el) return
+    while (parent.parentElement) {
+        if (parent.nodeName === "DETAILS") {
+            parent.setAttribute("open", true)
+        }
+        parent = parent.parentElement
+    }
+    el.scrollIntoView()
+}
+
+window.addEventListener("hashchange", fixDetailsSummary)
+fixDetailsSummary()
+
 const customStyle = localStorage.getItem("user-stylesheet")
 let customStyleEl = null
 if (customStyle) {