Community variant
2 sultana chess
Chess with 2 sultana on 9x9.
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), rook (r), bishop (b), knight (n), pawn (p), sultana (s) and queen (q).
- sultana (s) is a custom piece with Betza movement `QC`.
Promotion
- The pieces that can promote are: pawn (p).
- Promotion choices are both sides: rook (r), knight (n), bishop (b), queen (q) and sultana (s).
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.
QC
move
capture
move or capture
initial only
hopper target
Fairy-Stockfish rules
[twosultanachess__:chess]
maxFile = 9
maxRank = 9
customPiece1 = s:QC
promotionPieceTypes = rnbqs
startFen = rnbsksnbr/ppppppppp/9/9/9/9/9/PPPPPPPPP/RNBSKSNBR w KQkq - 0 1
castlingKingFile = e
castlingRookKingsideFile = h
castlingRookQueensideFile = c