Community variant
coffeehouse
All of the rules of Crazyhouse apply except that captures are mandatory.
This is a user-catalogued casual variant. Technical details such as board size, FEN, pieces, and hand rules are defined in the Fairy-Stockfish variants.ini block below.
Generated rule overview
This variant inherits its base rules from `chess` and overrides the settings shown below.
Board and setup
Pieces and movement
- The piece set used on the board is: king (k), queen (q), rook (r), bishop (b), knight (n) and pawn (p).
Move rules
- Captures are mandatory when available, except that legal check evasion still has priority.
Drops and hands
- Pieces in hand can be dropped back onto the board. Droppable pieces are: queen (q), rook (r), bishop (b), knight (n) and pawn (p).
- Captured pieces go to the capturer's hand.
Fairy-Stockfish rules
[coffee-house:chess]
startFen = rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR[] w KQkq - 0 1
pieceDrops = true
capturesToHand = true
mustCapture = true