Community variant
Counterintuitive chess
Learn the piece movements by yourself.
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), custom piece 5 (q), custom piece 4 (r), custom piece 3 (b), custom piece 2 (n) and custom piece 1 (p).
- custom piece 1 (p) is a custom piece with Betza movement `irF3ifDirfNmfWcefF`.
- custom piece 2 (n) is a custom piece with Betza movement `lfNfrNbrNblA`.
- custom piece 3 (b) is a custom piece with Betza movement `mfBcfrF3cflF2`.
- custom piece 4 (r) is a custom piece with Betza movement `vRrW3lW2sN2`.
- custom piece 5 (q) is a custom piece with Betza movement `mfBcfrF3cflF2vRrW3lW2sN2mfN`.
- The royal piece king (k) uses custom Betza movement `KfrN`.
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.
irF3ifDirfNmfWcefF
lfNfrNbrNblA
mfBcfrF3cflF2
vRrW3lW2sN2
mfBcfrF3cflF2vRrW3lW2sN2mfN
KfrN
move
capture
move or capture
initial only
hopper target
Fairy-Stockfish rules
[counterintuitive:chess]
startFen = rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w - - 0 1
pawn = -
knight = -
bishop = -
rook = -
queen = -
customPiece1 = p:irF3ifDirfNmfWcefF
customPiece2 = n:lfNfrNbrNblA
customPiece3 = b:mfBcfrF3cflF2
customPiece4 = r:vRrW3lW2sN2
customPiece5 = q:mfBcfrF3cflF2vRrW3lW2sN2mfN
king = k:KfrN
pawnTypes = p