diff --git a/board.py b/board.py
index 1af1811..b3bd628 100644
--- a/board.py
+++ b/board.py
@@ -284,7 +284,7 @@ class Board:
         legal_moves = set()
         
         if not Board.any_move_valid(board, player, roll):
-            return [ board ]
+            return { board }
         dice_permutations = list(itertools.permutations(roll)) if roll[0] != roll[1] else [[roll[0]]*4]
         # print("Dice permuts:",dice_permutations)
         for roll in dice_permutations: