Community variant
Mini-Cabalbanca
In this setup, rooks are replaced by the Archbishop and Chancellor, with pawns promoting to any of these active pieces (except a rook). You can castle with both Archbishop and Chancellor.
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), bishop (b), knight (n), pawn (p), custom piece 1 (a) and custom piece 2 (c).
- custom piece 1 (a) is a custom piece with Betza movement `BN`.
- custom piece 2 (c) is a custom piece with Betza movement `RN`.
Promotion
- The pieces that can promote are: pawn (p).
- Promotion choices are both sides: queen (q), custom piece 1 (a), custom piece 2 (c), knight (n) and bishop (b).
Piece movement
These diagrams show custom pieces and known Fairy-Stockfish built-in fairy pieces from White's perspective on a compact preview board. Some special moves, especially hoppers and game-state-dependent moves, can still depend on blockers or game state.
BN
RN
move
capture
move or capture
initial only
hopper target
Fairy-Stockfish rules
[capablanca_small_:chess]
customPiece1 = a:BN
customPiece2 = c:RN
startFen = anbqkbnc/pppppppp/8/8/8/8/PPPPPPPP/ANBQKBNC w KQkq - 0 1
castlingRookPieces = a c
promotionPieceTypes = q a c n b