It is a player's responsibility to point out his opponent's flag-fall.
White's flag has fallen but black does not notice. Black's flag falls and white points it out. With best play the position is drawn but both players have mating material (e.g. K,R vs K,B,P). No arbiter is present, but spectators know which flag fell first.
White's flag has fallen but black does not notice. Black's flag falls and white points it out. With best play the position is drawn but both players have mating material (e.g. K,R vs K,B,P). No arbiter is present, but spectators know which flag fell first.
Question: what should the result be?