Community variant
Courierspel
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 `courier` 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), fers-alfil (e), piece (f), piece (w) and piece (m).
Move rules
- Pawn double-step moves are enabled.
Promotion
- The pieces that can promote are: pawn (p).
- Promotion choices are both sides: rook (r), knight (n), bishop (b), piece (f), fers-alfil (e), piece (m) and piece (w).
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.
A
F
K
W
move
capture
move or capture
initial only
hopper target
Fairy-Stockfish rules
[courierspel1:courier]
alfil = -
fersAlfil = e
doubleStep = true
doubleStepRegionWhite = *2
doubleStepRegionBlack = *7
enPassantTypes = -
promotionPieceTypes = rnbfemw