r-o-b-o / bongcloudchess

Chess variant made using C and JS

BongcloudChess

Rules

• The game starts with the board in the double bongcloud position with only kings and pawns
• Pawns move (and capture) according to the same rules as with standard chess (barring en passant) as well as nothing happening when they reach their end rank
• Kings can move 1 space but only in its color's pawn direction or sideways (n shape)
• The win-states are when the opponent’s king is captured or when the king reaches the end of the board
• Due to white moving first it's a draw if black reaches the end the move after white i.e. black on 7th rank white on 1st
• Threefold repetition: game considered drawn if the same position occurs 3 times