diff --git a/config.nims b/cup.nims
similarity index 100%
rename from config.nims
rename to cup.nims
diff --git a/game.nim b/game.nim
index d9f1f83..f879ce7 100644
--- a/game.nim
+++ b/game.nim
@@ -121,9 +121,11 @@ proc display*(b: Board, start, stop: int) =
 
 
 proc setState*(b: var Board; state: GameState) =
-  for color, pos in b.camels:
-    if pos > 0:
-      b[pos].camels.clear()
+  for sq in b.squares.mitems:
+    if sq.camels.len > 0:
+      sq.camels.clear()
+    elif sq.tile.isSome:
+      sq.tile = none[Tile]()
 
   for (color, dest) in state.camels: # note that `camels` is ordered, as this determines stacking
     b[dest].camels.add(color)
diff --git a/simulation.nim b/simulation.nim
index 6179af1..38b4da6 100644
--- a/simulation.nim
+++ b/simulation.nim
@@ -1,4 +1,4 @@
-import cpuinfo, math, options, random, tables
+import cpuinfo, math, options, random, sequtils, tables
 import combinators, game, fixedseq
 
 
@@ -54,6 +54,11 @@ iterator legEndStates(b: Board): Board =
 
 
 proc getLegScores*(b: Board): ScoreSet =
+  # special case if all dice have been rolled
+  if allIt(b.diceRolled, it):
+    inc result[b.leader]
+    return result
+
   for prediction in b.legEndStates:
     inc result[prediction.leader]
 
diff --git a/test.nims b/test.nims
new file mode 100644
index 0000000..ada9020
--- /dev/null
+++ b/test.nims
@@ -0,0 +1,4 @@
+--threads: on
+--d: danger
+--d: lto
+--opt: speed