Community variant
Chessqq
The snake moves like a king and also like a bishop for upto 4 steps in each diagonal.
Pawns move and capture diagonally.
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), knight (n), custom piece 2 (p) and custom piece 1 (s).
- custom piece 1 (s) is a custom piece with Betza movement `K B4`.
- custom piece 2 (p) is a custom piece with Betza movement `fF`.
Promotion
- The pieces that can promote are: custom piece 2 (p).
- Promotion choices are both sides: queen (q), knight (n) and custom piece 1 (s).
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.
K B4
fF
move
capture
move or capture
initial only
hopper target
Fairy-Stockfish rules
[snake_chess:chess]
# Remove standard pieces that are not used
bishop = -
rook = -
# Define the Snake (s)
# Moves like a King (K) and a Bishop up to 4 squares (B4)
customPiece1 = s:K B4
# Define the Diagonal Pawn (p)
# Moves and captures forward-diagonally exactly 1 square (fF)
customPiece2 = p:fF
# Set allowed promotions for your diagonal pawns
promotionPieceTypes = qns
# Starting board layout (8x8)
startFen = ssnqknss/pppppppp/8/8/8/8/PPPPPPPP/SSNQKNSS w - - 0 1