diff --git a/complex2.cpp b/complex2.cpp
index 9ca6c34d..26153b30 100644
--- a/complex2.cpp
+++ b/complex2.cpp
@@ -1051,7 +1051,7 @@ EX namespace dice {
         c->wall = (pct < (items[itOrbLuck] ? 9 : 11)) ? waRichDie : waHappyDie;
         generate_specific(c, &d6, 1, 2);
         }
-      if(pct2 < 40 + hard) {
+      else if(pct2 < 40 + hard) {
         c->monst = moAnimatedDie;
         generate_specific(c, &d6, 0, 99);
         }
@@ -1062,7 +1062,7 @@ EX namespace dice {
         c->wall = (pct < (items[itOrbLuck] ? 9 : 11)) ? waRichDie : waHappyDie;
         generate_specific(c, &d12, 2, 3);
         }
-      if(pct2 < 40 + hard) {
+      else if(pct2 < 40 + hard) {
         c->monst = moAnimatedDie;
         generate_specific(c, &d12, 0, 99);
         }
@@ -1153,6 +1153,12 @@ EX namespace dice {
     return isDie(c->wall) || isDie(c->monst);
     }
       
+  EX string describe(cell *c) {
+    if (!data.count(c)) return "BUG: die data missing";
+    else if (!data[c].which) return "BUG: die data default-initialized";
+    else return XLAT("d%1 rolled %2", its(data[c].which->faces), its(data[c].val + 1));
+  }
+
   EX void roll(movei mi) {
     auto &cto = mi.t;
     auto &th = mi.s;
diff --git a/graph.cpp b/graph.cpp
index d0d601a2..a3cad9f8 100644
--- a/graph.cpp
+++ b/graph.cpp
@@ -45,7 +45,23 @@ EX bool hide_player() {
      ;
   }
 
-#define ADC(V,c) IF_KEY_EXISTS(it, current_display->all_drawn_copies, c) for(const shiftmatrix& V: it->second)
+template<class T>
+class span {
+  T *begin_ = nullptr;
+  T *end_ = nullptr;
+
+  public:
+  explicit span() = default;
+  explicit span(T *p, int n) : begin_(p), end_(p + n) {}
+  T *begin() const { return begin_; }
+  T *end() const { return end_; }
+  };
+
+template<class Map, class Key>
+hr::span<const shiftmatrix> span_at(const Map& map, const Key& key) {
+  auto it = map.find(key);
+  return (it == map.end()) ? hr::span<const shiftmatrix>() : hr::span<const shiftmatrix>(it->second.data(), it->second.size());
+  }
 
 EX hookset<bool(int sym, int uni)> hooks_handleKey;
 EX hookset<bool(cell *c, const shiftmatrix& V)> hooks_drawcell;
@@ -4361,7 +4377,8 @@ EX void queuecircleat1(cell *c, const shiftmatrix& V, double rad, color_t col) {
 
 EX void queuecircleat(cell *c, double rad, color_t col) {
   if(!c) return;
-  ADC(V, c) queuecircleat1(c, V, rad, col);
+  for (const shiftmatrix& V : hr::span_at(current_display->all_drawn_copies, c))
+    queuecircleat1(c, V, rad, col);
   }
 #endif
 
@@ -4418,10 +4435,11 @@ EX void drawMarkers() {
     ignore(ok);
      
     #if CAP_QUEUE
-    if(haveMount()) ADC(V, dragon::target) {
-      queuestr(V, 1, "X",
-        gradient(0, iinf[itOrbDomination].color, -1, sintick(dragon::whichturn == turncount ? 75 : 150), 1));
-      }
+    if(haveMount())
+      for (const shiftmatrix& V : hr::span_at(current_display->all_drawn_copies, dragon::target)) {
+        queuestr(V, 1, "X",
+          gradient(0, iinf[itOrbDomination].color, -1, sintick(dragon::whichturn == turncount ? 75 : 150), 1));
+        }
     #endif
 
     /* for(int i=0; i<12; i++) if(c->type == 5 && c->master == &dodecahedron[i])
@@ -4536,16 +4554,20 @@ EX void drawMarkers() {
 
       int adj = 1 - ((sword_angles/cwt.at->type)&1);
       
-      if(items[itOrbSword]) ADC(V, cwt.at)
-        queuestr(V * spin(M_PI+(-adj-2*ang)*M_PI/sword_angles) * xpush0(cgi.sword_size), vid.fsize*2, "+", iinf[itOrbSword].color);
-      if(items[itOrbSword2]) ADC(V, cwt.at)
-        queuestr(V * spin((-adj-2*ang)*M_PI/sword_angles) * xpush0(-cgi.sword_size), vid.fsize*2, "+", iinf[itOrbSword2].color);
+      if(items[itOrbSword])
+        for (const shiftmatrix& V : hr::span_at(current_display->all_drawn_copies, cwt.at))
+          queuestr(V * spin(M_PI+(-adj-2*ang)*M_PI/sword_angles) * xpush0(cgi.sword_size), vid.fsize*2, "+", iinf[itOrbSword].color);
+      if(items[itOrbSword2])
+        for (const shiftmatrix& V : hr::span_at(current_display->all_drawn_copies, cwt.at))
+          queuestr(V * spin((-adj-2*ang)*M_PI/sword_angles) * xpush0(-cgi.sword_size), vid.fsize*2, "+", iinf[itOrbSword2].color);
       }
     if(SWORDDIM == 3 && !shmup::on) {
-      if(items[itOrbSword]) ADC(V, cwt.at)
-        queuestr(V * sword::dir[multi::cpid].T * xpush0(cgi.sword_size), vid.fsize*2, "+", iinf[itOrbSword].color);
-      if(items[itOrbSword2]) ADC(V, cwt.at)
-        queuestr(V * sword::dir[multi::cpid].T * xpush0(-cgi.sword_size), vid.fsize*2, "+", iinf[itOrbSword2].color);
+      if(items[itOrbSword])
+        for (const shiftmatrix& V : hr::span_at(current_display->all_drawn_copies, cwt.at))
+          queuestr(V * sword::dir[multi::cpid].T * xpush0(cgi.sword_size), vid.fsize*2, "+", iinf[itOrbSword].color);
+      if(items[itOrbSword2])
+        for (const shiftmatrix& V : hr::span_at(current_display->all_drawn_copies, cwt.at))
+          queuestr(V * sword::dir[multi::cpid].T * xpush0(-cgi.sword_size), vid.fsize*2, "+", iinf[itOrbSword2].color);
       }
     }
 
@@ -4603,10 +4625,17 @@ void drawFlashes() {
     bool kill = true;
     flashdata& f = flashes[k];
     bool copies = false;
-    ADC(V, f.where) copies = true, draw_flash(f, V, kill);
-    forCellIdEx(c2, id, f.where) if(!copies) ADC(V, c2) {
-      draw_flash(f, V * currentmap->iadj(f.where, id), kill);
+    for (const shiftmatrix& V : hr::span_at(current_display->all_drawn_copies, f.where)) {
       copies = true;
+      draw_flash(f, V, kill);
+      }
+    forCellIdEx(c2, id, f.where) {
+      if(!copies) {
+        for (const shiftmatrix& V : hr::span_at(current_display->all_drawn_copies, c2)) {
+          draw_flash(f, V * currentmap->iadj(f.where, id), kill);
+          copies = true;
+          }
+        }
       }
     if(f.t > ticks - 800 && !copies) {
       kill = false;
diff --git a/help.cpp b/help.cpp
index 323cc789..a3b9e2e5 100644
--- a/help.cpp
+++ b/help.cpp
@@ -945,6 +945,9 @@ EX void describeMouseover() {
       
       if(c->wall == waRose) out += " (" + its(7-rosephase) + ")";
       if(c->wall == waTerraWarrior) out += " (" + its(c->landparam) + ")";
+      #if CAP_COMPLEX2
+      if(isDie(c->wall)) out += " (" + dice::describe(c) + ")";
+      #endif
       
       if((c->wall == waBigTree || c->wall == waSmallTree) && c->land != laDryForest)
         help = 
@@ -972,6 +975,10 @@ EX void describeMouseover() {
   
     else if(c->monst) {
       out += ", "; out += XLAT1(minf[c->monst].name); 
+      #if CAP_COMPLEX2
+      if(isDie(c->monst))
+        out += " (" + dice::describe(c) + ")";
+      #endif
       if(hasHitpoints(c->monst))
         out += " (" + its(c->hitpoints)+" HP)";
       if(isMutantIvy(c))
diff --git a/hyper.h b/hyper.h
index 3c43b595..63cad3d2 100644
--- a/hyper.h
+++ b/hyper.h
@@ -575,11 +575,6 @@ typedef function<int(struct cell*)> cellfunction;
 #define forCellCM(ct, cf) forCellIdCM(ct,forCellCM ## __LINE__,cf)
 #define forCellAll(ct, cf) forCellIdCM(ct,forCellAll ## __LINE__,cf)
 
-/* conditions */
-
-/** `IF_KEY_EXISTS(it, map, key) statement` checks whether the map 'map' contain key 'key', and if so, executes statement with it set to the relevant iterator */
-#define IF_KEY_EXISTS(it, map, key) for(auto it: {map.find(key)}) if(it != map.end())
-
 // canAttack/moveval flags
 
 #define AF_NORMAL            0          // nothing special about this attack
@@ -851,6 +846,13 @@ template<class T> array<T, 4> make_array(T a, T b, T c, T d) { array<T,4> x; x[0
 template<class T> array<T, 3> make_array(T a, T b, T c) { array<T,3> x; x[0] = a; x[1] = b; x[2] = c; return x; }
 template<class T> array<T, 2> make_array(T a, T b) { array<T,2> x; x[0] = a; x[1] = b; return x; }
 
+// Find in a std::map or std::unordered_map, or return null.
+template<class Map, class Key>
+const typename Map::mapped_type *at_or_null(const Map& map, const Key& key) {
+  auto it = map.find(key);
+  return (it == map.end()) ? nullptr : &it->second;
+  }
+
 namespace daily {
   extern bool on;
   extern int daily_id;
diff --git a/landgen.cpp b/landgen.cpp
index ae392a4c..a6c1f856 100644
--- a/landgen.cpp
+++ b/landgen.cpp
@@ -537,8 +537,8 @@ EX void giantLandSwitch(cell *c, int d, cell *from) {
           c->item = hrand(100) < 80 ? itOrbFrog : itOrbDiscord;
         if(hrand(5000) < 20*PRIZEMUL && c->wall != waOpenGate)
           placePrizeOrb(c);
-        if(c->wall == waNone) buildPrizeMirror(c, 250);
-        if(c->land == laPalace && (eubinary || c->master->alt) && celldistAlt(c) <= 150 && !(havewhat&HF_MOUSE) && !princess::generating &&
+        if(c->wall == waNone && buildPrizeMirror(c, 250)) {}
+        else if(c->land == laPalace && (eubinary || c->master->alt) && celldistAlt(c) <= 150 && !(havewhat&HF_MOUSE) && !princess::generating &&
           princess::getPrisonInfo(c) &&
           (eubinary || (princess::getPrisonInfo(c)->bestdist < 6 && princess::getPrisonInfo(c)->princess))) {
           c->monst = moMouse;
@@ -2345,7 +2345,7 @@ EX void giantLandSwitch(cell *c, int d, cell *from) {
         }
       if(d == 7 && c->landparam == 2) forCellEx(c2, c) if(c2->land == laRuins && out_ruin(c2)) c->landparam = 1;
       ONEMPTY {
-        if(hrand(1500) < PT(30 + kills[moHexDemon] + kills[moSkeleton] + kills[moMonk] + kills[moPair], 100) && notDippingFor(itRuins)) {
+        if(hrand(1500) < PT(30 + kills[moHexDemon] + kills[moAltDemon] + kills[moMonk] + kills[moPair] + kills[moCrusher], 100) && notDippingFor(itRuins)) {
           c->item = itRuins;
           forCellEx(c2, c) if(c2->monst == moMonk)
             c->item = itNone;
@@ -2587,8 +2587,9 @@ EX void giantLandSwitch(cell *c, int d, cell *from) {
     
     case laDice: {
       #if CAP_COMPLEX2
-      if(fargen)
+      if(fargen && !c->monst && !c->wall) {
         dice::generate_full(c, items[itDice] + yendor::hardness());
+      }
       #endif
       break;
       }
@@ -2632,6 +2633,7 @@ EX void giantLandSwitch(cell *c, int d, cell *from) {
               c->monst = moHexer;
               c->item = pick(itCurseWeakness, itCurseDraining, itCurseWater, itCurseFatigue, itCurseRepulsion, itCurseGluttony);
               }
+            break;
             }
           }
         
diff --git a/language-ru.cpp b/language-ru.cpp
index 89f707be..552192f3 100644
--- a/language-ru.cpp
+++ b/language-ru.cpp
@@ -7270,10 +7270,23 @@ S("A brown gem.", "Коричневый камень.")
 Orb("Choice", "Выбора")
 
 N("Free Fall", GEN_O, "Свободное падение", "Свободные падения", "Свободное падение", "в Свободном падении")
+
+S("What on one side looks to be a normal (well, infinite) horizontal wall, on the other side turns out to be the vertical wall"
+  " of an infinitely high tower. Jump from the window, and let the magical gravity carry you...",
+
+  "То, что на одной стороне похоже на обычную (хотя и бесконечную) горизонтальную стену, "
+  "на другой стороне оказывается вертикальной стеной бесконечно высокой башни. "
+  "Выпрыгайте через окно, и пусть сила волшебной тяжести везёт Вас...")
+
 N("Falling Dog", GEN_F, "Падающая собака", "Падающие собаки", "Падающую собаку", "Падающей собакой")
 S("Distant relatives of the Running Dogs.", "Дальние родственники Бегущих собак.")
 N("Western Hawk", GEN_M, "Западный ястреб", "Западные ястреба", "Западного ястреба", "Западным ястребом")
 N("Meteorite", GEN_O, "Метеорит", "Метеориты", "Метеорит", "Метеоритом")
+
+S("These rocks falling from the sky have been captured to fall forever in the artificial gravity. Meteorite iron is believed to be a valuable material for magical weapons.",
+  "Эти падающие с неба камни захвачены, чтобы вечно падать под силой исскуственной тяжести. "
+  "Верят, что метеоритное железо - ценный материал для ковки волшебных орудий.")
+
 Orb("Gravity", "Гравитации")
 
 N("Irradiated Field", GEN_N, "Облучённое поле", "Облучённые поля", "Облучённое поле", "в Облучённом поле")
diff --git a/language.cpp b/language.cpp
index 93842d44..19293abf 100644
--- a/language.cpp
+++ b/language.cpp
@@ -232,7 +232,7 @@ void parrep(string& x, string w, stringpar p) {
       rep(x, "%a"+w, N->n[3].acc);
       rep(x, "%abl"+w, N->n[3].abl);
       rep(x, "%E"+w, choose3(N->n[3].genus, "", "а", "о"));
-      rep(x, "%A"+w, choose3(N->n[3].genus, "ый", "ая", "ое"));
+      rep(x, "%A"+w, choose3(N->n[3].genus, "ый", "ую", "ое"));
       rep(x, "%c"+w, choose3(N->n[3].genus, "ся", "ась", ""));
       rep(x, "%y"+w, choose3(N->n[3].genus, "ый", "ая", "ое"));
       }
diff --git a/monstermove.cpp b/monstermove.cpp
index ffdca97d..1c0f03f2 100644
--- a/monstermove.cpp
+++ b/monstermove.cpp
@@ -1796,8 +1796,13 @@ EX void specialMoves() {
     if(m == moHunterGuard && items[itHunting] >= 10)
       c->monst = moHunterChanging;
     
-    if(m == moHunterDog && (havewhat & HF_FAILED_AMBUSH) && hyperbolic && !quotient)
-      c->monst = moHunterChanging;
+    if ((havewhat & HF_FAILED_AMBUSH) && hyperbolic && !quotient) {
+      if(m == moHunterDog)
+        c->monst = moHunterChanging;
+      forCellEx(c2, c)
+        if(c2->monst == moHunterDog)
+          c2->monst = moHunterChanging;
+      }
     
     if(m == moSleepBull && !peace::on) {
       bool wakeup = false;
diff --git a/orbgen.cpp b/orbgen.cpp
index 8bc65909..3c3663b6 100644
--- a/orbgen.cpp
+++ b/orbgen.cpp
@@ -297,7 +297,7 @@ EX eOrbLandRelation getOLR(eItem it, eLand l) {
 
   if(it == itOrbSlaying && !among(l, 
     laMirror, laHell, laEmerald, laDryForest, laCamelot, laPalace, laStorms, laRose, laTortoise, laBurial, laDungeon, laReptile, 
-    laPrairie, laBull, laVolcano, laTerracotta, laRuins, laVariant, laEclectic, laBrownian))
+    laPrairie, laBull, laVolcano, laTerracotta, laRuins, laVariant, laEclectic, laBrownian, laCursed))
     return olrUseless;
   
   if(l == laCocytus)
diff --git a/util.cpp b/util.cpp
index f98e7d60..c48581d4 100644
--- a/util.cpp
+++ b/util.cpp
@@ -207,10 +207,10 @@ cld exp_parser::parse(int prio) {
     cld c = rparse(0);
     force_eat(")");
 
-    IF_KEY_EXISTS(it, extra_params, "angleunit") {
-      a *= it->second;
-      b *= it->second;
-      c *= it->second;
+    if (auto *angleunit = hr::at_or_null(extra_params, "angleunit")) {
+      a *= *angleunit;
+      b *= *angleunit;
+      c *= *angleunit;
       }
 
     return edge_of_triangle_with_angles(real(a), real(b), real(c));
@@ -237,14 +237,14 @@ cld exp_parser::parse(int prio) {
     test.compute_sum();
     test.compute_geometry();
     res = test.edgelength;
-    IF_KEY_EXISTS(it, extra_params, "distunit")
-      res /= it->second;
+    if (auto *distunit = hr::at_or_null(extra_params, "distunit"))
+      res /= *distunit;
     }
   #endif
   else if(eat("regangle(")) {
     cld edgelen = parse(0);
-    IF_KEY_EXISTS(it, extra_params, "distunit") {
-      edgelen = edgelen * it->second;
+    if (auto *distunit = hr::at_or_null(extra_params, "distunit")) {
+      edgelen *= *distunit;
       }
     
     force_eat(",");
@@ -260,14 +260,14 @@ cld exp_parser::parse(int prio) {
     
     if(arb::legacy) {
       res = M_PI - result;
-      IF_KEY_EXISTS(it, extra_params, "angleofs")
-        res -= it->second;
+      if (auto *angleofs = hr::at_or_null(extra_params, "angleofs"))
+        res -= *angleofs;
       }
     else
       res = result;
 
-    IF_KEY_EXISTS(it, extra_params, "angleunit")
-      res /= it->second;
+    if (auto *angleunit = hr::at_or_null(extra_params, "angleunit"))
+      res /= *angleunit;
     }
   else if(eat("test(")) {
     res = parsepar();
@@ -318,8 +318,8 @@ cld exp_parser::parse(int prio) {
   else if(next() == '(') at++, res = parsepar(); 
   else {
     string number = next_token();
-    IF_KEY_EXISTS(it, extra_params, number) res = it->second;
-    else IF_KEY_EXISTS(it, params, number) res = it->second->get_cld();
+    if (auto *p = hr::at_or_null(extra_params, number)) res = *p;
+    else if (auto *p = hr::at_or_null(params, number)) res = (*p)->get_cld();
     else if(number == "e") res = exp(1);
     else if(number == "i") res = cld(0, 1);
     else if(number == "p" || number == "pi") res = M_PI;