diff --git a/rogueviz/fifteen.cpp b/rogueviz/fifteen.cpp
index 25c9e7c4..1c8b820d 100644
--- a/rogueviz/fifteen.cpp
+++ b/rogueviz/fifteen.cpp
@@ -139,6 +139,8 @@ void scramble() {
     }     
   }
 
+bool seupho3 = true;
+
 bool draw_fifteen(cell *c, const shiftmatrix& V) {
   hr::addaura(tC0(V), darkened(0x0000FF), 0);
   lastexplore = turncount;
@@ -157,6 +159,19 @@ bool draw_fifteen(cell *c, const shiftmatrix& V) {
     c->landparam = 0x101080;
     }
   else {
+
+    if(seupho3) {
+      set_floor(cgi.shFullFloor);
+      ensure_floorshape_generated(shvid(c), c);
+      for(int i=0; i<c->type; i++)
+        if(!fif.count(c->move(i)) || (showing ? fif[c->move(i)].target : fif[c->move(i)].current) == Empty)
+          placeSidewall(c, i, SIDE_SLEV, V, 0xFFFFFFFF);
+      auto V1 = orthogonal_move_fol(V, cgi.SLEV[1]);
+      draw_qfi(c, V1, 0xFFFFFFFF, PPR::WALL3A);
+      write_in_space(V1 * ddspin(c,cdir,0) * (cmir ? MirrorX: Id), 72, 1, dotted(cur), 0xFF, 0, 8);
+      return true;
+      }
+
     c->land = laCanvas;
     c->wall = waNone;
     c->landparam = 0xFFFFFF;