Kriegspiel (chess) illegal, the player tries again; if it is legal, that move stands. Each player is given information about checks and captures. They may also ask the referee if there are any legal captures with a pawn. Since the position of the opponent's pieces is unknown, Kriegspiel is not a game with perfect information. As each player cannot see his opponent's pieces, the game is sometimes referred to as "blind chess". There are several different rule sets for Kriegspiel. The most widespread rules are those used on the Internet Chess Club, where Kriegspiel is called "Wild 16". The rules are as
White and Black in chess in the first game. Staunton observed in 1871 that "many players still cultivate the foolish habit of playing exclusively with one colour." On October 19, 1857, Mr. Perrin, the Secretary of the New York Chess Club, informed those assembled at the First American Chess Congress that he had received a letter from Johann Löwenthal, a leading English master, "suggesting the advisableness of always giving the first move in public games, to the player of the white pieces." Löwenthal also wrote that London's chess clubs had adopted a new rule that White always moves first. The club evidently did not follow