Minor coding style fixes

Author: niklasf

chess/syzygy.py

@@ -23,7 +23,6 @@
 import struct
 import sys
 import threading
-import math
 
 
 UINT64_BE = struct.Struct(">Q")
@@ -1592,7 +1591,7 @@ def probe_ab(self, board, alpha, beta, threats=False):
             return self.sprobe_ab(board, alpha, beta, threats)
 
         # Generate non-ep captures.
-        for move in  board.generate_legal_moves(to_mask=board.occupied_co[not board.turn]):
+        for move in board.generate_legal_moves(to_mask=board.occupied_co[not board.turn]):
             board.push(move)
             try:
                 v_plus, success = self.probe_ab(board, -beta, -alpha)

test.py

@@ -2909,7 +2909,7 @@ def test_variant_end(self):
         board = chess.variant.RacingKingsBoard("1K6/7k/8/8/8/8/8/8 b - - 0 1")
         self.assertFalse(board.is_game_over())
 
-        board.push_san("Kg7") # ??
+        board.push_san("Kg7")  # ??
         self.assertFalse(board.is_variant_draw())
         self.assertTrue(board.is_variant_win())
         self.assertFalse(board.is_variant_loss())