Community variant

Alquerque(kinda)

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.

Uploaded by: Timur
Visibility: public
Status: active

Generated rule overview

This variant is defined directly from a Fairy-Stockfish rule block. The text below is generated from the available configuration and may omit details that are only implicit in piece movement notation.

Board and setup

Default starting position

Pieces and movement

The piece set used on the board is: pawn (p).
pawn (p) is a custom piece with Betza movement `K`.

Move rules

Check restrictions are disabled; kings/royal pieces may be capturable depending on the variant goal.
Castling is not allowed.
Pawn double-step moves are disabled.
Captures are mandatory when available, except that legal check evasion still has priority.

Promotion

Promotion choices are both sides: no pieces.
Pawn promotion is optional where promotion is legal.

Winning and losing

An extinction rule is active: reaching 0 remaining piece(s) p causes a win for the side to move.
Stalemate is scored as a loss for the side to move.

Draws and adjudication

There is no automatic n-move/50-move draw rule.
Position repetition is adjudicated after 0-fold repetition as a draw.

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.

Custom piece 1 (P) movement

K

move capture move or capture initial only hopper target

Fairy-Stockfish rules

[alquerque]

maxRank = 5
maxFile = 5

# Pieces move one step horizontally, vertically, or diagonally.
customPiece1 = p:K

# Use p for both sides' men.
pawn = p

# Starting position:
# Black: 12 men
# White: 12 men
# Empty center point
startFen = ppppp/ppppp/p3p/PPPPP/PPPPP w - - 0 1

# No chess rules
king = -
queen = -
rook = -
bishop = -
knight = -

castling = false
doubleStep = false
checking = false

# Captures are compulsory.
mustCapture = true

# Alquerque is won by eliminating all opposing pieces.
extinctionValue = win
extinctionPieceTypes = p

# No promotion.
promotionPieceTypes = -
mandatoryPawnPromotion = false

# No stalemate draw.
stalemateValue = loss

nMoveRule = 0
nFoldRule = 0