Community variant
capitalistsynochess
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 `synochess` 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), pawn (p), piece (a), piece (c), piece (e) and piece (s).
- custom piece 1 (v) is a custom piece with Betza movement `mfW`.
- custom piece 2 (x) is a custom piece with Betza movement `mfW`.
- custom piece 3 (y) is a custom piece with Betza movement `mfW`.
Drops and hands
- Pieces in hand can be dropped back onto the board. Droppable pieces are: piece (s).
Promotion
- Promotions are available in the configured promotion zones. The the promotion region for White is all the ranks from 1 to 8 and the promotion region for Black is all the ranks from 1 to 8.
- The pieces that can promote are: pawn (p), custom piece 1 (v), custom piece 2 (x) and custom piece 3 (y).
- Promotion choices are both sides: no pieces.
- Fixed promotion mappings: p promotes to v, v promotes to x, x promotes to y and y promotes to q.
- Pawn promotion is optional where promotion is legal.
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.
mfW
mfW
mfW
move
capture
move or capture
initial only
hopper target
Fairy-Stockfish rules
[capitalistsynochess:synochess]
customPiece1 = v:mfW
customPiece2 = x:mfW
customPiece3 = y:mfW
promotedPieceType = p:v v:x x:y y:q
promotionPieceTypes = -
mandatoryPawnPromotion = false
promotionRegionWhite = *1 *2 *3 *4 *5 *6 *7 *8
promotionRegionBlack = *1 *2 *3 *4 *5 *6 *7 *8