(╯°□°）╯︵ ┻━┻

board.py

@@ -1,4 +1,3 @@
-import pdb
 import numpy as np
 import itertools
 
@@ -271,4 +270,6 @@ class Board:
 
         return tuple(board)
 
-
+    @staticmethod
+    def flip(board):
+        return tuple((-x for x in reversed(board)))

test.py

@@ -551,6 +551,60 @@ class TestLegalMoves(unittest.TestCase):
         }
 
         self.assertEqual(Board.calculate_legal_states(board, -1, (4,3)), expected_board_set)
+
+class TestBoardFlip(unittest.TestCase):
+    def test_flip_board(self):
+        board = (0,
+                 -14, -1, 0, 0, 0, 0,
+                 0, 0, 0, 0, 0, 0,
+                 0, 0, 0, 0, 0, 0,
+                 0, 0, 0, 0, 0, 1,
+                 0)
+
+        expected_board = ( 0,
+                           -1, 0, 0, 0, 0, 0,
+                           0, 0, 0, 0, 0, 0,
+                           0, 0, 0, 0, 0, 0,
+                           0, 0, 0, 0, 1, 14,
+                           0 )
+
+        self.assertEqual(Board.flip(board), expected_board)
+
+    def test_flip_board_bar(self):
+        board = (2,
+                 0, 0, 0, 0, 0, 0,
+                 0, 0, 0, 0, 0, 0,
+                 0, 0, 0, 0, 0, 0,
+                 0, 0, 0, 0, 0, 0,
+                 -7)
+
+        expected_board = (7,
+                          0, 0, 0, 0, 0, 0,
+                          0, 0, 0, 0, 0, 0,
+                          0, 0, 0, 0, 0, 0,
+                          0, 0, 0, 0, 0, 0,
+                          -2)
+
+        self.assertEqual(Board.flip(board), expected_board)
+        
+    def test_flip_board_extensive(self):
+        board = (4,
+                 -5, -1, 0, 4, 3, 0,
+                 0, -1, 0, -5, 0, 0,
+                 0, 3, 0, 0, 0, 0,
+                 0, 0, 0, -1, 0, 1,
+                 -2)
+
+        expected_board = (2,
+                          -1, 0, 1, 0, 0, 0,
+                          0, 0, 0, 0, -3, 0,
+                          0, 0, 5, 0, 1, 0,
+                          0, -3, -4, 0, 1, 5,
+                          -4)
+
+        self.assertEqual(Board.flip(board), expected_board)
+
+
         
 if __name__ == '__main__':
     unittest.main()