Kriegspiel (chess) follows. The game is played with three boards, one for each player; the third is for the umpire (and spectators). Each opponent knows the exact position of just their pieces, and does not know where the opponent's pieces are (but can keep track of how many there are). Only the umpire knows the position of the game. The game proceeds in the following way: The umpire announces: Pawn promotions are not announced. Kriegspiel is sometimes used in chess problems. In these, usual variations introduced by different black moves are replaced by variations introduced by different announcements. An example of a
Chess with different armies rook replacement to c1. This is so colorbound pieces don't change square color. Many pieces in the following armies are combination of standard chess pieces and 4 fairy pieces: "ferz", "alfil", "wazir" and "dabbaba" (see their movement diagrams above). The game can be played with standard chess pieces and the following move diagrams use standard pieces as well (except queens). In this army, rooks, knights, bishops, and queen are replaced by the following pieces: As mentioned, when using this army and castling queenside, the king moves "three" squares (from e1 to b1) and the bede moves from a1 to c1.