def valid_givens(self, position=None, color=None): if position: candidates = self.adjacent_givens(position) else: candidates = self.givens.keys() for gpos in candidates: number = self.givens[gpos] adjs = self.given_adjacencies[gpos] if not valid.count_black(self, adjs, number): return False return True
def valid_domino(self, position=None, color=None): for pos in self.black_positions: adjs = self.adjacencies[pos] if not valid.count_black(self, adjs, 1): return False return True