Double Chess is played on an 8 x 16 board (i.e. two boards) with 2 sets of pieces. A third queen is substitured for the second King though. All rules remain the same as
Standard ChessStarting Position
The board double the width, and the game starts with one King and three Queens each.
Board is interactive - make a move
The moves of the pieces remains the same as
Standard ChessPawn promotion rules remains the same as
Standard ChessCastling
When inside castling on queenside, the King moves to G file, and the rook the the H file. When castling on the kingside side, the King moves to the K file and the Rook to the J file.
White inside castling
Board is interactive - make a move
When outside castling on queenside, the King moves to E file, and the rook the the F file. When castling on the kingside side, the King moves to the M file and the Rook to the I file.
White outside castling
Board is interactive - make a move
En passant rules remains the same as
Standard ChessCheck and Checkmate rules remain the same as
Standard ChessStalemate conditions remain the same as
Standard ChessDraw conditions remain the same as
Standard ChessWinning conditions remain the same as
Standard ChessAttribution
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