diff --git a/network.py b/network.py
index 0682fda..9eff2a8 100644
--- a/network.py
+++ b/network.py
@@ -142,19 +142,6 @@ class Network:
         return best_move_pair
 
 
-    def gen_21_rolls(self):
-        """
-        Calculate all possible rolls, [[1,1], [1,2] ..]
-        :return: All possible rolls
-        """
-        a = []
-        for x in range(1,7):
-            for y in range(1,7):
-                if not [x,y] in a and not [y,x] in a:
-                    a.append([x,y])
-
-        return a
-
     def calculate_2_ply(self, sess, board, roll, player):
         """
         Find the best move based on a 2-ply look-ahead. First the best move is found for a single ply and then an
@@ -168,6 +155,18 @@ class Network:
 
         """
 
+        def gen_21_rolls():
+            """
+            Calculate all possible rolls, [[1,1], [1,2] ..]
+            :return: All possible rolls
+            """
+            a = []
+            for x in range(1, 7):
+                for y in range(1, 7):
+                    if not [x, y] in a and not [y, x] in a:
+                        a.append([x, y])
+
+            return a
 
         init_legal_states = Board.calculate_legal_states(board, player, roll)
         zero_ply_moves_and_scores = [(move, self.eval_state(sess, self.board_trans_func(move, player))) for move in init_legal_states]
@@ -177,7 +176,7 @@ class Network:
         best_fifteen.reverse()
         best_fifteen_boards = [x[0] for x in best_fifteen[:15]]
 
-        all_rolls = self.gen_21_rolls()
+        all_rolls = gen_21_rolls()
 
         all_rolls_scores = []
         for a_board in best_fifteen_boards: