Community variant
Sidewaysbacktorpedo chess
Kramnik's nightmare.
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), rook (r), bishop (b), knight (n) and Pawn (p).
- Pawn (p) is a custom piece with Betza movement `mWfniDfceF`.
- Some pieces have restricted movement regions: mobilityRegionWhiteCustomPiece1 is *2 *3 *4 *5 *6 *7 *8.
- Some pieces have restricted movement regions: mobilityRegionBlackCustomPiece1 is *1 *2 *3 *4 *5 *6 *7.
Move rules
- Pawn double-step moves are enabled.
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.
mWfniDfceF
move
capture
move or capture
initial only
hopper target
Fairy-Stockfish rules
[sidewaysbacktorpedo:chess]
customPiece1 = p:mWfniDfceF
pawnTypes = p
nMoveRuleTypes = -
enPassantTypes = p
doubleStep = true
doubleStepRegionWhite = *1 *2 *3 *4 *5 *6 *7 *8
doubleStepRegionBlack = *1 *2 *3 *4 *5 *6 *7 *8
mobilityRegionWhiteCustomPiece1 = *2 *3 *4 *5 *6 *7 *8
mobilityRegionBlackCustomPiece1 = *1 *2 *3 *4 *5 *6 *7