Community variant
Mini courier
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), knight (n), pawn (p), custom piece 2 (f), custom piece 1 (w) and commoner (m).
- custom piece 1 (w) is a custom piece with Betza movement `W`.
- custom piece 2 (f) is a custom piece with Betza movement `F`.
Move rules
- Pawn double-step moves are disabled.
Promotion
- Promotions are available in the configured promotion zones. The the promotion region for White is all the ranks from 6 to 8 and the promotion region for Black is all the ranks from 3 to 1.
- The pieces that can promote are: pawn (p).
- Promotion choices are both sides: custom piece 1 (w), knight (n), custom piece 2 (f) and commoner (m).
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.
W
F
move
capture
move or capture
initial only
hopper target
Fairy-Stockfish rules
[mini-courier_:chess]
startFen = wnfmkfnw/pppppppp/8/8/8/8/PPPPPPPP/WNFMKFNW w KQkq - 0 1
doubleStep = false
customPiece1 = w:W
customPiece2 = f:F
commoner = m
promotionRegionWhite = *6 *7 *8
promotionRegionBlack = *3 *2 *1
castlingRookPieces = w
promotionPieceTypes = wnfm