variants.ini

# Fairy-Stockfish, a UCI chess variant playing engine derived from Stockfish
# Copyright (C) 2018-2022 Fabian Fichter
#
# Fairy-Stockfish is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Fairy-Stockfish is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# This is a configuration file to add user-defined variants to Fairy-Stockfish.

################################################
### Usage:
# Add "load" and the file path to the SF call (e.g., "stockfish.exe load variants.ini")
# or set the UCI option "VariantPath" to the path of this file in order to load it.
# In order to validate the configuration without actually loading the variants
# run "stockfish.exe check variants.ini", which reports potential config errors.

################################################
### Variant configuration:
# The variant name needs to be specified as a section in square brackets,
# followed by its rule configurations as key-value pairs as described below.
# If you encounter problems configuring variants, please report them at:
# https://github.com/ianfab/Fairy-Stockfish/issues

### Inheritance
# If a variant is similar to a previously defined variant,
# inheritance can be used to simplify the definition. To inherit from the
# configuration of an existing variant, specify the parent variant after the child
# variant name separated by a colon, e.g., [gothic:capablanca].
# When inheritance is used, only the differences to the parent variant need to be defined,
# see the examples in this file, e.g., 3check-crazyhouse.
# When no inheritance is used, the default template applies,
# which is basically standard chess but without any predefined pieces.

### Piece types
# Firstly, the piece types for a variant need to be defined.
# For that, specify the letter used for each piece type, e.g.:
# pawn = p
#
# See the list below for all available predefined piece types (and their Betza notation):
# pawn (fmWfceF)
# knight (N)
# bishop (B)
# rook (R)
# queen (Q)
# fers (F)
# alfil (A)
# fersAlfil (FA)
# silver (FfW)
# aiwok (RNF)
# bers (RF)
# archbishop (BN)
# chancellor (RN)
# amazon (QN)
# knibis (mNcB)
# biskni (mBcN)
# kniroo (mNcR)
# rookni (mRcN)
# shogiPawn (fW)
# lance (fR)
# shogiKnight (fN)
# gold (WfF)
# dragonHorse (BW)
# clobber (cW)
# breakthrough (fmWfF)
# immobile ()
# cannon (mRcpR)
# janggiCannon (pR)
# soldier (fsW)
# horse (nN)
# elephant (nA)
# janggiElephant (nZ)
# banner (RcpRnN)
# wazir (W)
# commoner (K)
# centaur (KN)
# king (K)

### Custom pieces
# Custom pieces can be defined by using one of the available slots:
# customPiece1, customPiece2, ..., customPiece25
# E.g., pawns without double steps could be described as:
# customPiece1 = p:mfWcfF
#
# You can define custom king movements in the same way you can define another custom piece.
# E.g., to make the king move like a centaur:
# king = k:KN
# In contrast to other custom pieces the Betza notation for the king is optional though
# and defaults to a standard chess king (betza: K) when skipped, e.g.:
# king = k
#
# The movements of custom pieces can be defined using the Betza notation.
# https://www.gnu.org/software/xboard/Betza.html
# In Fairy-Stockfish only a subset of Betza notation can be used. The supported features are:
# - all base moves/atoms (W, F, etc.)
# - all directional modifiers (f, b, etc.)
# - limited and unlimited distance sliders/riders for W/R, F/B, and N directions
# - hoppers and grasshoppers for W/R and F/B directions, i.e., pR, pB, gR, and gB
# - lame leapers (n) for N, A, Z, and D directions, i.e., nN, nA, nZ, and nD

### Piece values
# The predefined and precalculated piece values can be overridden
# by specifying the pieceValueMg and pieceValueEg options, e.g.,
# pieceValueMg = p:150 n:800
# pieceValueEg = p:200 n:900
#
# For orientation, the internal predefined piece values can be found in types.h.
# A suitable piece for gauging the piece values is the rook, which internally has:
# pieceValueMg = r:1276
# pieceValueEg = r:1380

### Option types
# [bool]: boolean flag to enable/disable a feature [true, false]
# [Rank]: denotes a rank of the board [1-10]
# [File]: denotes a file of the board [1-12, a-i]
# [int]: any natural number [0, 1, ...]
# [PieceType]: a piece type [letters defined for pieces, e.g., p]
# [PieceSet]: multiple piece types [letters defined for pieces, e.g., nbrq]
# [CastlingRights]: set of castling rights [letters for castling rights as in FEN, e.g., KQkq]
# [Bitboard]: list of squares [e.g., d4 e4 d5 e5]. * can be used as wildcard for files (e.g., *1 is the first rank)
# [Value]: game result for the side to move [win, loss, draw]
# [MaterialCounting]: material counting rules for adjudication [janggi, unweighted, whitedrawodds, blackdrawodds, none]
# [CountingRule]: makruk, cambodian, or ASEAN counting rules [makruk, cambodian, asean, none]
# [ChasingRule]: xiangqi chasing rules [axf, none]
# [EnclosingRule]: reversi, ataxx, etc. enclosing rules [reversi, ataxx, quadwrangle, snort, anyside, top, none]
# - in enclosingDrop:
#  - reversi: must enclose opponent's pieces between yours by Queen move
#  - ataxx: must be adjacent to own piece by King move
#  - snort: most *not* be adjacent to opponent's piece by Wazir move
#  - anyside: must be reached by inserting from an edge and sliding to opposite edge
#  - top: must be reached by inserting from top and sliding to bottom (ie. Connect 4)
# - in flipEnclosedPieces:
#  - reversi: flip opponent's pieces enclosed between yours by Queen move
#  - quadwrangle: if a normal move *or* a drop with a friendly piece adjacent by King move, then flip opponent's pieces adjacent by King move
#  - ataxx: flip opponent's pieces adjacent by King move
# [WallingRule]: wall-placing rule [arrow, duck, edge, past, static, none]
# - arrow: copies piece movement (ie. Game of the Amazons)
# - duck: mobile square (ie. Duck chess)
# - edge: edges of board, opening up new edges (ie. Atlantis)
# - past: previous square (ie. Snailtrail)
# - static: unchanging mask (ie. Isolation)

### Additional options relevant for usage in Winboard/XBoard
# A few options only have the purpose of improving compatibility with Winboard/Xboard.
# These do not need to be specified when using other GUIs, but can be essential for Winboard/Xboard.
#
# variantTemplate: base variant to inherit GUI logic from [values: fairy, shogi, bughouse] (default: fairy)
# pieceToCharTable: mapping of piece characters to images,
#                   see https://www.gnu.org/software/xboard/whats_new/4.9.0/index.html#tag-B1 (default: -)
# pocketSize: number of pockets shown by XBoard/WinBoard for drop variants [int] (default: 0)

### Rule definition options
# maxRank: maximum rank [Rank] (default: 8)
# maxFile: maximum file [File] (default: 8)
# chess960: allow chess960 castling [bool] (default: false)
# twoBoards: pocket pieces are added from an external source, usually from a second board (e.g., bughouse) [bool] (default: false)
# startFen: FEN of starting position (default: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1)
# mobilityRegion: the mobility area can be defined via options specific to color and piece,
#                 .e.g., mobilityRegionWhiteRook, mobilityRegionBlackJanggiElephant, etc. [Bitboard]
# pawnTypes: define pieces considered as "pawns" for promotion, en passant, and n move rule [PieceSet] (default: p)
#            see promotionPawnTypes, enPassantTypes, and nMoveRuleTypes for more specific overrides.
# promotionRegionWhite: region where promotions are allowed for white [Bitboard] (default: *8)
# promotionRegionBlack: region where promotions are allowed for black [Bitboard] (default: *1)
# promotionPawnTypes: promotion pawn types for both colors [PieceSet] (default: p)
# promotionPawnTypesWhite: white promotion pawn types [PieceSet] (default: p)
# promotionPawnTypesBlack: black promotion pawn types [PieceSet] (default: p)
# promotionPieceTypes: pawn promotion options [PieceSet] (default: nbrq)
# promotionPieceTypesWhite: white pawn promotion options [PieceSet] (default: nbrq)
# promotionPieceTypesBlack: black pawn promotion options [PieceSet] (default: nbrq)
# sittuyinPromotion: enable Sittuyin-style pawn promotion [bool] (default: false)
# promotionLimit: maximum number of pieces of a type, e.g., q:1 r:2 (default: )
# promotedPieceType: mapping between unpromoted and promoted non-pawn piece types, e.g., p:g s:g (default: )
# piecePromotionOnCapture: piece promotion only allowed on captures (e.g., micro shogi) [bool] (default: false)
# mandatoryPawnPromotion: pawn promotion is mandatory [bool] (default: true)
# mandatoryPiecePromotion: piece promotion (and demotion if enabled) is mandatory [bool] (default: false)
# pieceDemotion: enable demotion of pieces (e.g., Kyoto shogi) [bool] (default: false)
# blastOnCapture: captures explode all adjacent non-pawn pieces (e.g., atomic chess) [bool] (default: false)
# blastImmuneTypes: pieces completely immune to explosions (even at ground zero) [PieceSet] (default: none)
# mutuallyImmuneTypes: pieces that can't capture another piece of same types (e.g., kings (commoners) in atomar) [PieceSet] (default: none)
# selfCapture: allow capturing one's own pieces [bool] (default: false)
# ironPieceTypes: pieces that are uncapturable (attempting to capture them is illegal) [PieceSet] (default: none)
# petrifyOnCaptureTypes: defined pieces are turned into wall squares when capturing [PieceSet] (default: -)
# petrifyBlastPieces: if petrify and blast combined, should pieces destroyed in the blast be petrified? [bool] (default: false)
# doubleStep: enable pawn double step [bool] (default: true)
# doubleStepRegionWhite: region where pawn double steps are allowed for white [Bitboard] (default: *2)
# doubleStepRegionBlack: region where pawn double steps are allowed for black [Bitboard] (default: *7)
# tripleStepRegionWhite: region where pawn triple steps are allowed for white [Bitboard] (default: -)
# tripleStepRegionBlack: region where pawn triple steps are allowed for black [Bitboard] (default: -)
# enPassantRegion: define region (target squares) where en passant is allowed after double steps [Bitboard] (default: AllSquares)
# enPassantRegionWhite: define region (target squares) where en passant is allowed for white [Bitboard] (default: AllSquares)
# enPassantRegionBlack: define region (target squares) where en passant is allowed for black [Bitboard] (default: AllSquares)
# enPassantTypes: define pieces able to capture en passant [PieceSet] (default: p)
# enPassantTypesWhite: define white pieces able to capture en passant [PieceSet] (default: p)
# enPassantTypesBlack: define black pieces able to capture en passant [PieceSet] (default: p)
# castling: enable castling [bool] (default: true)
# castlingDroppedPiece: enable castling with dropped rooks/kings [bool] (default: false)
# castlingKingsideFile: destination file of king after kingside castling [File] (default: g)
# castlingQueensideFile: destination file of king after queenside castling [File] (default: c)
# castlingRank: relative rank of castling [Rank] (default: 1)
# castlingKingFile: starting file of the castlingKingPiece if there can be more than one of that type [File] (default: e)
# castlingKingPiece: first piece type that participates in castling [PieceType] (default: k)
# castlingRookKingsideFile: starting file of castlingRookPieces on kingside (if not in corner) [File] (default: l)
# castlingRookQueensideFile: starting file of castlingRookPieces on queenside (if not in corner) [File] (default: a)
# castlingRookPieces: second piece type that participates in castling [PieceSet] (default: r)
# oppositeCastling: can't castle same side as opponent [bool] (default: false)
# checking: allow checks [bool] (default: true)
# dropChecks: allow checks by piece drops [bool] (default: true)
# mustCapture: captures are mandatory (check evasion still takes precedence) [bool] (default: false)
# mustDrop: drops are mandatory (e.g., for Sittuyin setup phase) [bool] (default: false)
# mustDropType: piece type for which piece drops are mandatory [PieceType] (default: *)
# pieceDrops: enable piece drops [bool] (default: false)
# dropLoop: captures promoted pieces are not demoted [bool] (default: false)
# capturesToHand: captured pieces go to opponent's hand [bool] (default: false)
# firstRankPawnDrops: allow pawn drops to first rank [bool] (default: false)
# promotionZonePawnDrops: allow pawn drops in promotion zone  [bool] (default: false)
# enclosingDrop: require piece drop to enclose pieces [EnclosingRule] (default: none)
# enclosingDropStart: drop region for starting phase disregarding enclosingDrop (e.g., for reversi) [Bitboard]
# dropRegionWhite: restrict region for piece drops of all white pieces [Bitboard]
# dropRegionBlack: restrict region for piece drops of all black pieces [Bitboard]
# sittuyinRookDrop: restrict region of rook drops to first rank [bool] (default: false)
# dropOppositeColoredBishop: dropped bishops have to be on opposite-colored squares [bool] (default: false)
# dropPromoted: pieces may be dropped in promoted state [bool] (default: false)
# dropNoDoubled: specified piece type can not be dropped to the same file (e.g. shogi pawn) [PieceType] (default: -)
# dropNoDoubledCount: specifies the count of already existing pieces for dropNoDoubled [int] (default: 1)
# immobilityIllegal: pieces may not move to squares where they can never move from [bool] (default: false)
# gating: maintain squares on backrank with extra rights in castling field of FEN [bool] (default: false)
# wallingRule: rule on where wall can be placed [WallingRule] (default: none)
# wallingRegionWhite: mask where wall squares (including duck) can be placed by white [Bitboard] (default: all squares)
# wallingRegionBlack: mask where wall squares (including duck) can be placed by black [Bitboard] (default: all squares)
# wallOrMove: can wall or move, but not both [bool] (default: false)
# seirawanGating: allow gating of pieces in hand like in S-Chess, requires "gating = true" [bool] (default: false)
# cambodianMoves: enable special moves of cambodian chess, requires "gating = true" [bool] (default: false)
# diagonalLines: enable special moves along diagonal for specific squares (Janggi) [Bitboard]
# pass: allow passing [bool] (default: false)
# passWhite: allow passing for white [bool] (default: false)
# passBlack: allow passing for black [bool] (default: false)
# passOnStalemate: allow passing in case of stalemate [bool] (default: false)
# passOnStalemateWhite: allow passing in case of stalemate for white [bool] (default: false)
# passOnStalemateBlack: allow passing in case of stalemate for black [bool] (default: false)
# makpongRule: the king may not move away from check [bool] (default: false)
# flyingGeneral: disallow general face-off like in xiangqi [bool] (default: false)
# diagonalGeneral: disallow king face-off along diagonals [bool] (default: false)
# soldierPromotionRank: restrict soldier to shogi pawn movements until reaching n-th rank [Rank] (default: 1)
# flipEnclosedPieces: change color of pieces that are enclosed by a drop [EnclosingRule] (default: none)
# nMoveRuleTypes: define pieces resetting n move rule on irreversible moves [PieceSet] (default: p)
# nMoveRuleTypesWhite: define white pieces resetting n move rule on irreversible moves [PieceSet] (default: p)
# nMoveRuleTypesBlack: define black pieces resetting n move rule on irreversible moves [PieceSet] (default: p)
# nMoveRule: move count for 50/n-move rule [int] (default: 50)
# nFoldRule: move count for 3/n-fold repetition rule [int] (default: 3)
# nFoldValue: result in case of 3/n-fold repetition [Value] (default: draw)
# nFoldValueAbsolute: result in case of 3/n-fold repetition is from white's point of view [bool] (default: false)
# perpetualCheckIllegal: prohibit perpetual checks [bool] (default: false)
# moveRepetitionIllegal: prohibit moving back and forth with the same piece nFoldRule-1 times [bool] (default: false)
# chasingRule: enable chasing rules [ChasingRule] (default: none)
# stalemateValue: result in case of stalemate [Value] (default: draw)
# stalematePieceCount: count material in case of stalemate [bool] (default: false)
# checkmateValue: result in case of checkmate [Value] (default: loss)
# shogiPawnDropMateIllegal: prohibit checkmate via shogi pawn drops [bool] (default: false)
# shatarMateRule: enable shatar mating rules [bool] (default: false)
# bikjangRule: consider Janggi bikjang (facing kings) rule [bool] (default: false)
# extinctionValue: result when one of extinctionPieceTypes is extinct [Value] (default: none)
# extinctionClaim: extinction of opponent pieces can only be claimed as side to move [bool] (default: false)
# extinctionPseudoRoyal: treat the last extinction piece like a royal piece [bool] (default: false)
# dupleCheck: when all pseudo-royal pieces are attacked, it counts as a check [bool] (default: false)
# extinctionPieceTypes: list of piece types for extinction rules, e.g., pnbrq (* means all) (default: )
# extinctionPieceCount: piece count at which the game is decided by extinction rule (default: 0)
# extinctionOpponentPieceCount: opponent piece count required to adjudicate by extinction rule (default: 0)
# flagPiece: piece type for capture the flag win rule [PieceType] (default: *)
# flagPieceWhite: piece type for capture the flag win rule [PieceType] (default: *)
# flagPieceBlack: piece type for capture the flag win rule [PieceType] (default: *)
# flagRegion: target region for capture the flag win rule [Bitboard] (default: )
# flagRegionWhite: white's target region for capture the flag win rule [Bitboard] (default: )
# flagRegionBlack: black's target region for capture the flag win rule [Bitboard] (default: )
# flagPieceCount: number of flag pieces that have to be in the flag zone [int] (default: 1)
# flagPieceBlockedWin: for flagPieceCount > 1, win if at least one flag piece in flag zone and all others occupied by pieces [bool] (default: false)
# flagMove: the other side gets one more move after one reaches the flag zone [bool] (default: false)
# flagPieceSafe: the flag piece must be safe to win [bool] (default: false)
# checkCounting: enable check count win rule (check count is communicated via FEN, see 3check) [bool] (default: false)
# connectN: number of aligned pieces for win [int] (default: 0)
# connectPieceTypes: pieces evaluated for connection rule [PieceSet] (default: *)
# connectVertical: connectN looks at Vertical rows [bool] (default: true)
# connectHorizontal: connectN looks at Horizontal rows [bool] (default: true)
# connectDiagonal: connectN looks at Diagonal rows [bool] (default: true)
# connectRegion1White: connect Region 1 to Region 2 for win. obeys connectVertical, connectHorizontal, connectDiagonal [Bitboard] (default: -)
# connectRegion2White: "
# connectRegion1Black: "
# connectRegion2Black: "
# connectNxN: connect a tight NxN square for win [int] (default: 0)
# collinearN: arrange N pieces collinearly (other squares can be between pieces) [int] (default: 0)
# connectValue: result in case of connect [Value] (default: win)
# materialCounting: enable material counting rules [MaterialCounting] (default: none)
# adjudicateFullBoard: apply material counting immediately when board is full [bool] (default: false)
# countingRule: enable counting rules [CountingRule] (default: none)
# castlingWins: Specified castling moves are win conditions. Losing these rights is losing. [CastlingRights] (default: -)

################################################
### Example for minishogi configuration that would be equivalent to the built-in variant:

# [minishogi]
# variantTemplate = shogi
# maxRank = 5
# maxFile = 5
# shogiPawn = p
# silver = s
# gold = g
# bishop = b
# dragonHorse = h
# rook = r
# bers = d
# king = k
# startFen = rbsgk/4p/5/P4/KGSBR[-] w 0 1
# pieceDrops = true
# capturesToHand = true
# promotionRegionWhite = *5
# promotionRegionBlack = *1
# doubleStep = false
# castling = false
# promotedPieceType = p:g s:g b:h r:d
# dropNoDoubled = p
# immobilityIllegal = true
# shogiPawnDropMateIllegal = true
# stalemateValue = loss
# nFoldRule = 4
# nMoveRule = 0
# perpetualCheckIllegal = true
# pocketSize = 5
# nFoldValue = loss
# nFoldValueAbsolute = true

# pawns with extra sideways and backwards movement
# example for defining a custom pawn type
# resetting the original "p" piece with "pawn = -" is optional as already done implicitly
[allwayspawns:chess]
customPiece1 = p:mWfceFifmnD
pawnTypes = p

# Hybrid variant of three-check chess and crazyhouse, using crazyhouse as a template
[3check-crazyhouse:crazyhouse]
startFen = rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR[] w KQkq - 3+3 0 1
checkCounting = true

# Hybrid variant of atomic and giveaway
[atomic-giveaway:giveaway]
blastOnCapture = true

# Hybrid variant of atomic, giveaway, and king of the hill
[atomic-giveaway-hill:giveaway]
blastOnCapture = true
flagPiece = k
flagRegion = d4 e4 d5 e5

# Crazyhouse with mandatory captures, using crazyhouse as a template
[coffeehouse:crazyhouse]
mustCapture = true

# Hybrid variant of makruk and crazyhouse
[makhouse:makruk]
startFen = rnsmksnr/8/pppppppp/8/8/PPPPPPPP/8/RNSKMSNR[] w - - 0 1
pieceDrops = true
capturesToHand = true
firstRankPawnDrops = true
promotionZonePawnDrops = true
immobilityIllegal = true

# Hybrid variant of xiangqi and crazyhouse
[xiangqihouse:xiangqi]
startFen = rnbakabnr/9/1c5c1/p1p1p1p1p/9/9/P1P1P1P1P/1C5C1/9/RNBAKABNR[] w - - 0 1
pieceDrops = true
capturesToHand = true
dropChecks = false
dropRegionWhite = *1 *2 *3 *4 *5
dropRegionBlack = *6 *7 *8 *9 *10
mobilityRegionWhiteFers = d1 f1 e2 d3 f3
mobilityRegionBlackFers = d8 f8 e9 d10 f10
mobilityRegionWhiteElephant = c1 g1 a3 e3 i3 c5 g5
mobilityRegionBlackElephant = c6 g6 a8 e8 i8 c10 g10
mobilityRegionWhiteSoldier = a4 a5 c4 c5 e4 e5 g4 g5 i4 i5 *6 *7 *8 *9 *10
mobilityRegionBlackSoldier = *1 *2 *3 *4 *5 a6 a7 c6 c7 e6 e7 g6 g7 i6 i7

# Hybrid variant of janggi and crazyhouse
[janggihouse:janggi]
startFen = rnba1abnr/4k4/1c5c1/p1p1p1p1p/9/9/P1P1P1P1P/1C5C1/4K4/RNBA1ABNR[] w - - 0 1
pieceDrops = true
capturesToHand = true

# Hybrid variant of antichess and losalamos
[anti-losalamos:losalamos]
king = -
commoner = k
promotionPieceTypes = nrqk
mustCapture = true
stalemateValue = win
extinctionValue = win
extinctionPieceTypes = *

# Indian great chess
# https://www.chessvariants.com/historic.dir/indiangr1.html
[indiangreat]
pieceToCharTable = PNBRQ..VW.........G..Kpnbrq..vw.........g..k
pawn = p
knight = n
bishop = b
rook = r
queen = q
king = k
archbishop = v
chancellor = w
amazon = g
maxRank = 10
maxFile = 10
startFen = rnbqkgvbnr/ppppwwpppp/4pp4/10/10/10/10/4PP4/PPPPWWPPPP/RNBVGKQBNR w - - 0 1
promotionRegionWhite = *10
promotionRegionBlack = *1
promotionPieceTypes = q
doubleStep = false
castling = false

# Centaurking
# A variant demonstrating how to define a custom royal piece movement
[centaurking:chess]
king = k:KN

# Mahajarah and the Sepoys
# https://en.wikipedia.org/wiki/Maharajah_and_the_Sepoys
[maharajah]
pawn = p
knight = n
bishop = b
rook = r
queen = q
king = k
amazon = m
pieceToCharTable = PNBRQ.............MKpnbrq.............mk
startFen = rnbqkbnr/pppppppp/8/8/8/8/8/4M3 w kq - 0 1
extinctionValue = loss
extinctionPieceTypes = m
extinctionPseudoRoyal = true

# Maharajah
# https://vchess.club/#/variants/Maharajah (Balanced version of Maharajah and the Sepoys)
[maharajah2:maharajah]
amazon = -
customPiece1 = m:QNAD
pieceToCharTable = PNBRQ.............MKpnbrq.............mk
startFen = 3mm3/8/8/8/8/8/PPPPPPPP/RNBQKBNR w KQ - 0 1
extinctionPieceTypes = m

# Upside-down
[upsidedown:chess]
startFen = RNBKQBNR/PPPPPPPP/8/8/8/8/pppppppp/rnbkqbnr w - - 0 1

# Peasant revolt
# https://www.chessvariants.com/large.dir/peasantrevolt.html
[peasant:chess]
startFen = 1nn1k1n1/4p3/8/8/8/8/PPPPPPPP/4K3 w - - 0 1

# https://www.chessvariants.com/unequal.dir/weak.html
[weak:chess]
startFen = nnnnknnn/pppppppp/2p2p2/1pppppp1/8/8/PPPPPPPP/RNBQKBNR w KQ - 0 1

# Semi-torpedo chess
[semitorpedo:chess]
doubleStepRegionWhite = *2 *3
doubleStepRegionBlack = *7 *6

# This variant is similar to Capablanca Chess, but with two archbishops and no chancellor piece.
[gemini:janus]
startFen = rnbaqkabnr/pppppppppp/10/10/10/10/PPPPPPPPPP/RNBAQKABNR w KQkq - 0 1
archbishop = a
pieceToCharTable = PNBRQ............A...Kpnbrq............a...k
castlingKingsideFile = i
castlingQueensideFile = c

# https://www.chessvariants.com/diffsetup.dir/pawnsonly.html
[pawnsonly]
pawn = p
queen = q
startFen = 8/pppppppp/8/8/8/8/PPPPPPPP/8 w - - 0 1
promotionPieceTypes = q
castling = false
stalemateValue = loss
flagPiece = q
flagRegionWhite = *8
flagRegionBlack = *1

#https://github.com/yagu0/vchess/blob/master/client/src/translations/rules/Pawnsking/en.pug
[pawnsking:pawnsonly]
commoner = k
flagPiece = *
startFen = 4k3/pppppppp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1
extinctionValue = loss
extinctionPieceTypes = k
stalemateValue = draw

[tictactoe]
maxRank = 3
maxFile = 3
immobile = p
startFen = 3/3/3[PPPPPpppp] w - - 0 1
pieceDrops = true
doubleStep = false
castling = false
stalemateValue = draw
immobilityIllegal = false
connectN = 3

[cfour]
maxRank = 6
maxFile = 7
immobile = p
startFen = 7/7/7/7/7/7[PPPPPPPPPPPPPPPPPPPPPppppppppppppppppppppp] w - - 0 1
pieceDrops = true
enclosingDrop = top
doubleStep = false
castling = false
stalemateValue = draw
immobilityIllegal = false
connectN = 4
nMoveRule = 0

[flipello6:flipello]
maxRank = 6
maxFile = 6
startFen = 6/6/2pP2/2Pp2/6/6[PPPPPPPPPPPPPPPPPPPPPPpppppppppppppppppppppp] w 0 1
enclosingDropStart = c3 d3 c4 d4

[grandhouse:grand]
startFen = r8r/1nbqkcabn1/pppppppppp/10/10/10/10/PPPPPPPPPP/1NBQKCABN1/R8R[] w - - 0 1
pieceDrops = true
capturesToHand = true

[shogun:crazyhouse]
variantTemplate = shogi
pieceToCharTable = PNBR.F.....++++.+Kpnbr.f.....++++.+k
pocketSize = 8
startFen = rnb+fkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNB+FKBNR[] w KQkq - 0 1
commoner = c
centaur = g
archbishop = a
chancellor = m
fers = f
promotionRegionWhite = *6 *7 *8
promotionRegionBlack = *3 *2 *1
promotionLimit = g:1 a:1 m:1 q:1
promotionPieceTypes = -
promotedPieceType = p:c n:g b:a r:m f:q
mandatoryPawnPromotion = false
firstRankPawnDrops = true
promotionZonePawnDrops = true
dropRegionWhite = *1 *2 *3 *4 *5
dropRegionBlack = *4 *5 *6 *7 *8
immobilityIllegal = true

#https://www.chess.com/variants/caught-in-a-snag
[caught-in-a-snag:chess]
pieceToCharTable = P..........GUFW......Mp..........gufw......m
maxRank = 6
pawnTypes = p
fers = f
horse = u
wazir = w
centaur = m
king = g:gBgR
customPiece1 = p:fmWfcF
startFen = fuwmgwuf/pppppppp/8/8/PPPPPPPP/FUWGMWUF w - - 0 1
stalemateValue = win
promotionPawnTypes = -

#https://www.chess.com/variants/minihouse
[minihouse:crazyhouse]
maxRank = 6
maxFile = 6
startFen = 2bnrk/5p/6/6/P5/KRNB2
promotionPieceTypes = nbr
promotionRegionWhite = *6
doubleStep = false

#https://www.chess.com/variants/rookmate
[rookmate:chess]
#in this variant, one rook is royal, one isn't
#to define this, the royal rook will be a king(K) with custom moves, and the non-royal king a commoner(C)
pieceToCharTable = PNBRQC...............Kpnbrqc...............k
startFen = rnbqcbnk/pppppppp/8/8/8/8/PPPPPPPP/RNBQCBNK w 7+7 0 1
king = k:R
commoner = c
extinctionPieceCount = 1
extinctionValue = loss
extinctionPieceTypes = *

# Asymmetric variant with one army using pieces that move like knights but attack like other pieces (kniroo and knibis)
[orda:chess]
pieceToCharTable = PNBRQ..AH...........LKp...q..ah.y.........lk
centaur = h
knibis = a
kniroo = l
silver = y
promotionPieceTypes = qh
startFen = lhaykahl/8/pppppppp/8/8/8/PPPPPPPP/RNBQKBNR w KQ - 0 1
flagPiece = k
flagRegionWhite = *8
flagRegionBlack = *1

# Ordamirror
# https://vchess.club/#/variants/Ordamirror
[ordamirror:chess]
pieceToCharTable = P...Q..AH.F.........LKp...q..ah.f.........lk
centaur = h
knibis = a
kniroo = l
customPiece1 = f:mQcN
promotionPieceTypes = lhaf
startFen = lhafkahl/8/pppppppp/8/8/PPPPPPPP/8/LHAFKAHL w - - 0 1
flagPiece = k
flagRegionWhite = *8
flagRegionBlack = *1

# Hybrid variant of Gothic-chess and crazyhouse, using Capablanca as a template
[gothhouse:capablanca]
startFen = rnbqckabnr/pppppppppp/10/10/10/10/PPPPPPPPPP/RNBQCKABNR[] w KQkq - 0 1
pieceDrops = true
capturesToHand = true

# Synochess
# https://www.pychess.org/variant/synochess
[synochess:pocketknight]
pieceToCharTable = PNBRQAE...SCH........Kpnbrqae...sch........k
pocketSize = 8
janggiCannon = c
soldier = s
horse = h
fersAlfil = e
commoner = a
stalemateValue = loss
perpetualCheckIllegal = true
startFen = rneakenr/8/1c4c1/1ss2ss1/8/8/PPPPPPPP/RNBQKBNR[ss] w KQ - 0 1
flyingGeneral = true
capturesToHand = false
dropRegionBlack = *5
flagPiece = k
flagRegionWhite = *8
flagRegionBlack = *1

# Capture chess
# https://vchess.club/#/variants/Capture
[capture:chess]
mustCapture = true

# Double Army chess
# https://vchess.club/#/variants/Doublearmy
[doublearmy:chess]
pieceToCharTable = PNBRQ.....C...........Kpnbrq.....c...........k
commoner = c
startFen = rnbqkbnr/pppppppp/rnbqcbnr/pppppppp/PPPPPPPP/RNBQCBNR/PPPPPPPP/RNBQKBNR w KQkq - 0 1

# Pawn Massacre chess
# https://vchess.club/#/variants/Pawnmassacre
[pawnsmassacre:chess]
startFen = RNBKQBNR/pppppppp/8/8/8/8/PPPPPPPP/rnbkqbnr w - - 0 1

# Screen chess (Below version assumes 1 drop per turn instead of the whole blind setup as in vchess)
# https://vchess.club/#/variants/Screen 
[screen:placement]
dropNoDoubled = p
startFen = 8/8/8/8/8/8/8/8[KQRRBBNNPPPPPPPPkqrrbbnnpppppppp] w - - 0 1
dropRegionWhite = *1 *2 *3 *4
dropRegionBlack = *8 *7 *6 *5

# Crossing chess
# https://vchess.club/#/variants/Crossing
[crossing:kingofthehill]
flagRegionWhite = *5
flagRegionBlack = *4

# 4x5 Chess
# https://greenchess.net/rules.php?v=4x5-chess --> Solved draw
[4x5chess:gardner]
maxRank = 5
maxFile = d
startFen = rnbk/pppp/4/PPPP/RNBK w - - 0 1

# 4x6 Chess
# https://greenchess.net/rules.php?v=4x6-chess --> Solved draw
[4x6chess:gardner]
maxRank = 6
maxFile = d
promotionRegionWhite = *6
promotionRegionBlack = *1
startFen = rnbk/pppp/4/4/PPPP/RNBK w - - 0 1

# 5x6 chess
# https://greenchess.net/rules.php?v=5x6-chess
[5x6chess:gardner]
maxRank = 6
maxFile = e
promotionRegionWhite = *6
promotionRegionBlack = *1
startFen = rnbqk/ppppp/5/5/PPPPP/RNBQK w - - 0 1

# Active chess
# https://greenchess.net/rules.php?v=active
[active:chess]
maxFile = i
startFen = rnbkqbnrq/ppppppppp/9/9/9/9/PPPPPPPPP/RNBKQBNRQ w KQkq - 0 1

# Checkless 6x6 Atomic
[6x6atom:nocheckatomic]
extinctionPseudoRoyal = true
maxRank = 6
maxFile = f
promotionRegionWhite = *6
promotionRegionBlack = *1
doubleStep = false
startFen = rbqkbr/pppppp/6/6/PPPPPP/RBQKBR w - - 0 1

# Advanced Pawn chess
# https://greenchess.net/rules.php?v=advanced-pawn
[advancedpawn:chess]
doubleStep = false
startFen = rnbqkbnr/8/pppppppp/8/8/PPPPPPPP/8/RNBQKBNR w KQkq - 0 1

# Capture-all Chess
# https://greenchess.net/rules.php?v=capture-all
[captureall:extinction]
extinctionPieceTypes = *

# Corner Rook Chess
# https://greenchess.net/rules.php?v=corner-rook
[cornerrook:chess]
doubleStep = false
castling = false
startFen = r6r/1nbqkbn1/pppppppp/8/8/PPPPPPPP/1NBQKBN1/R6R w - - 0 1

# Diana Chess
# https://greenchess.net/rules.php?v=diana
[diana:losalamos]
pieceToCharTable = PNBRQ................Kpnbrq................k
bishop = b
promotionPieceTypes = rbn
castling = true
castlingKingsideFile = e
castlingQueensideFile = b
startFen = rbnkbr/pppppp/6/6/PPPPPP/RBNKBR w KQkq - 0 1

# Microchess
# https://greenchess.net/rules.php?v=microchess
[microchess:gardner]
maxRank = 5
maxFile = d
startFen = rbnk/p3/4/3P/RBNK w - - 0 1

# Empire Chess
# https://vchess.club/#/variants/Empire
[empire:chess]
pieceToCharTable = PNBRQ.....ST.C.D.E...Kpnbrq.....st.c.d.e...k
customPiece1 = e:mQcN
customPiece2 = c:mQcB
customPiece3 = t:mQcR
customPiece4 = d:mQcK
soldier = s
promotionPieceTypes = q
startFen = rnbqkbnr/pppppppp/8/8/8/PPPSSPPP/8/TECDKCET w kq - 0 1
stalemateValue = loss
nFoldValue = loss
flagPiece = k
flagRegionWhite = *8
flagRegionBlack = *1
flyingGeneral = true

# Shinobi Chess
# https://vchess.club/#/variants/Shinobi
[shinobi:chess]
variantTemplate = shogi
pieceToCharTable = PNBRQ.DJMLH.....CKpnbrq.djmlh.....ck
pocketSize = 8
commoner = c
bers = d
archbishop = j
fers = m
shogiKnight = h
lance = l
promotionRegionWhite = *7 *8
promotionRegionBlack = *2 *1
promotionPieceTypes = -
promotedPieceType = p:c m:b h:n l:r
mandatoryPiecePromotion = true
stalemateValue = loss
perpetualCheckIllegal = true
startFen = rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/LH1CK1HL[LHMMDJ] w kq - 0 1
pieceDrops = true
dropRegionWhite = *1 *2 *3 *4
dropRegionBlack = *5 *6 *7 *8
immobilityIllegal = true
flagPiece = k
flagRegionWhite = *8
flagRegionBlack = *1

# Wildebeest
# https://vchess.club/#/variants/Wildebeest
# Limitations: No flexible castling, no pawn triple steps
[wildebeest:chess]
maxRank = 10
maxFile = k
customPiece1 = c:C
customPiece2 = w:NC
doubleStepRegionWhite = *2 *3
doubleStepRegionBlack = *9 *8
tripleStepRegionWhite = *2
tripleStepRegionBlack = *9
pieceToCharTable = PNBRQ.......C....WKpnbrq.......c....wk
startFen = rnccwkqbbnr/ppppppppppp/11/11/11/11/11/11/PPPPPPPPPPP/RNBBQKWCCNR w KQkq - 0 1
promotionPieceTypes = qw
promotionRegionWhite = *9 *10
promotionRegionBlack = *2 *1
mandatoryPawnPromotion = false
castling = false

# Pandemonium
# A variant that combines drops and powerful pieces, and there is no draw
# https://www.chessvariants.com/rules/pandemonium
[pandemonium]
variantTemplate = shogi
pieceToCharTable = PNBRFSA.UV.+++++++.++Kpnbrfsa.uv.+++++++.++k
maxFile = 9
maxRank = 9
pocketSize = 9
startFen = rnbsksbnr/2a1f1u2/p1p1p1p1p/4v4/9/4V4/P1P1P1P1P/2U1F1A2/RNBSKSBNR[] w - - 0 1
customPiece1 = o:NA
customPiece2 = s:WF
customPiece3 = u:D
customPiece4 = w:DWF
castling = false
pieceDrops = true
capturesToHand = true
immobilityIllegal = true
soldier = p
knight = n
bishop = b
rook = r
king = k
queen = q
commoner = g
dragonHorse = h
bers = d
alfil = a
archbishop = c
chancellor = m
fers = f
wazir = v
centaur = t
promotionRegionWhite = *7 *8 *9
promotionRegionBlack = *3 *2 *1
promotedPieceType = p:g n:o b:h r:d a:c v:m f:q s:w u:t
doubleStep = false
perpetualCheckIllegal = true
nMoveRule = 0
nFoldValue = loss
stalemateValue = loss
flagPiece = k
flagRegionWhite = *9
flagRegionBlack = *1

# 5x5 breakthrough
[breakthrough5:breakthrough]
maxFile = 5
maxRank = 5
startFen = ppppp/ppppp/5/PPPPP/PPPPP w 0 1
flagRegionWhite = *5
flagRegionBlack = *1

# 6x6 breakthrough
[breakthrough6:breakthrough]
maxFile = 6
maxRank = 6
startFen = pppppp/pppppp/6/6/PPPPPP/PPPPPP w 0 1
flagRegionWhite = *6
flagRegionBlack = *1

# 7x7 breakthrough
[breakthrough7:breakthrough]
maxFile = 7
maxRank = 7
startFen = ppppppp/ppppppp/7/7/7/PPPPPPP/PPPPPPP w 0 1
flagRegionWhite = *7
flagRegionBlack = *1

# Mansindam (Pantheon tale)
# A variant that combines drop rule and powerful pieces, and there is no draw
[mansindam]
variantTemplate = shogi
pieceToCharTable = PNBR.Q.CMA.++++...++Kpnbr.q.cma.++++...++k
maxFile = 9
maxRank = 9
pocketSize = 8
startFen = rnbakqcnm/9/ppppppppp/9/9/9/PPPPPPPPP/9/MNCQKABNR[] w - - 0 1
pieceDrops = true
capturesToHand = true
shogiPawn = p
knight = n
bishop = b
rook = r
queen = q
archbishop = c
chancellor = m
amazon = a
king = k
commoner = g
centaur = e
dragonHorse = h
bers = t
customPiece1 = i:BNW
customPiece2 = s:RNF
promotionRegionWhite = *7 *8 *9
promotionRegionBlack = *3 *2 *1
doubleStep = false
castling = false
promotedPieceType = p:g n:e b:h r:t c:i m:s
dropNoDoubled = p
stalemateValue = loss
nMoveRule = 0
nFoldValue = loss
flagPiece = k
flagRegionWhite = *9
flagRegionBlack = *1
immobilityIllegal = true
mandatoryPiecePromotion = true

# Cross derby
# Pawns promote to a knight on the 8th rank. Checkmate or stalemate your opponent to win the game.
# https://www.chess.com/variants/cross-derby
[crossderby:chess]
pieceToCharTable = PN...................Kpn...................k
queen = -
rook = -
bishop = -
startFen = n*nnnn*k/**pppp**/pp4pp/8/8/PP4PP/**PPPP**/K*NNNN*N w - - 0 1
stalemateValue = loss

# Elimination chess
# Eliminate all the opponents' pieces but one to win. No checkmates, capturing is compulsory
# https://www.chess.com/variants/elimination-chess
[elimination:giveaway]
extinctionValue = loss
stalemateValue = loss
extinctionPieceCount = 1

# Hybrid variant of atomic and giveaway
[antiatomic:giveaway]
blastOnCapture = true
castling = false
extinctionOpponentPieceCount = 1

# Hybrid of atomic and Crazyhouse. --> SOLVED
[atomiczh:atomic]
dropChecks = false
pieceDrops = true
capturesToHand = true
pocketSize = 6
castling = false

# Chak
# Variant invented by Couch Tomato and inspired in the Mayan civilization
# https://www.pychess.org/variants/chak
[chak]
maxRank = 9
maxFile = 9
rook = r
knight = v
centaur = j
immobile = o
customPiece1 = s:FvW
customPiece2 = q:pQ
customPiece3 = d:mQ2cQ2
customPiece4 = p:fsmWfceF
customPiece5 = k:WF
customPiece6 = w:FvW
startFen = rvsqkjsvr/4o4/p1p1p1p1p/9/9/9/P1P1P1P1P/4O4/RVSJKQSVR w - - 0 1
mobilityRegionWhiteCustomPiece6 = *5 *6 *7 *8 *9
mobilityRegionWhiteCustomPiece3 = *5 *6 *7 *8 *9
mobilityRegionBlackCustomPiece6 = *1 *2 *3 *4 *5
mobilityRegionBlackCustomPiece3 = *1 *2 *3 *4 *5
promotionRegionWhite = *5 *6 *7 *8 *9
promotionRegionBlack = *5 *4 *3 *2 *1
promotionPieceTypes = -
mandatoryPiecePromotion = true
promotedPieceType = p:w k:d
extinctionValue = loss
extinctionPieceTypes = kd
extinctionPseudoRoyal = true
flagPiece = d
flagRegionWhite = e8
flagRegionBlack = e2
nMoveRule = 50
nFoldRule = 3
nFoldValue = draw
stalemateValue = loss

# Chennis
# Variant invented by Couch Tomato, tennis-themed and inspired in Kyoto Shogi
# https://www.pychess.org/variants/chennis
[chennis]
maxRank = 7
maxFile = 7
mobilityRegionWhiteKing = b1 c1 d1 e1 f1 b2 c2 d2 e2 f2 b3 c3 d3 e3 f3 b4 c4 d4 e4 f4
mobilityRegionBlackKing = b4 c4 d4 e4 f4 b5 c5 d5 e5 f5 b6 c6 d6 e6 f6 b7 c7 d7 e7 f7
customPiece1 = p:fmWfceF
cannon = c
commoner = m
fers = f
soldier = s
king = k
bishop = b
knight = n
rook = r
promotionPieceTypes = -
promotedPieceType = p:r f:c s:b m:n
promotionRegionWhite = *1 *2 *3 *4 *5 *6 *7
promotionRegionBlack = *7 *6 *5 *4 *3 *2 *1
startFen = 1fkm3/1p1s3/7/7/7/3S1P1/3MKF1[] w - 0 1
pieceDrops = true
capturesToHand = true
pieceDemotion = true
mandatoryPiecePromotion = true
dropPromoted = true
castling = false
stalemateValue = loss

# Gorogoro+
# 5x6 Shogi
# https://www.pychess.org/variants/gorogoroplus
[gorogoroplus:gorogoro]
startFen = sgkgs/5/1ppp1/1PPP1/5/SGKGS[LNln] w 0 1
lance = l
shogiKnight = n
promotedPieceType = l:g n:g
pieceToCharTable = P....SLN.G.+....+Kp....sln.g.+....+k

# Dragonfly
# Simplified Crazyhouse. Two rules have been removed from the original definition (Removing captured pawns and special pawn promotion). Credits to Procyon for the definition.
# https://en.wikipedia.org/wiki/Dragonfly_(chess_variant)
[dragonfly:chess]
maxFile = 7
maxRank = 7
pocketSize = 7
castlingKingsideFile = f
castlingQueensideFile = b
pieceDrops = true
capturesToHand = true
promotionRegionWhite = *7
promotionRegionBlack = *1
promotionPieceTypes = nbr
doubleStep = false
dropNoDoubled = p
dropNoDoubledCount = 0
startFen = rbbknnr/ppppppp/7/7/7/PPPPPPP/RBBKNNR[] w - - 0 1

# Kamikaze Rooks
# The objective of the game is to lose both rooks. Credits to Procyon for the definition.
# Variant defined in Pychess discord and previously playable with Chessboi bot.
[kamikazerooks:chess]
extinctionValue = win
extinctionPieceTypes = r

# Mounted
# Variant invented by Procyon. Credits to him for the definition.
# Variant defined in Pychess discord and previously playable with Chessboi bot.
[mounted]
maxRank = 7
maxFile = 7
pieceDrops = true
capturesToHand = true
stalemateValue = loss
nFoldValue = loss
extinctionValue = loss
extinctionPseudoRoyal = true
extinctionPieceTypes = k
flagPiece = k
flagRegionWhite = *7
flagRegionBlack = *1
centaur = k
bishop = b
rook = r
cannon = c
customPiece1 = a:mBcpB 
customPiece2 = s:FsfW
startFen = 1cbkra1/2s1s2/7/7/7/2S1S2/1CBKRA1 w - - 0 1

# Racing Chess
# Win by campmate. No checks allowed.
# Variant defined in Pychess discord and previously playable with Chessboi bot.
[racingchess:chess]
flagPiece = k
flagRegionWhite = *8
flagRegionBlack = *1
flagMove = true
checking = false

# Shinobi Mirror
# Symmetric version of Shinobi.
# Variant defined in Pychess discord and previously playable with Chessboi bot.
[shinobimirror:crazyhouse]
commoner = c
bers = d
archbishop = j
fers = m
shogiKnight = h
lance = l
pieceToCharTable = P.....DJMLH.....CKp.....djmlh.....ck
promotionRegionWhite = *7 *8
promotionRegionBlack = *2 *1
promotionPieceTypes = -
promotedPieceType = p:c m:b h:n l:r
mandatoryPiecePromotion = true
stalemateValue = loss
perpetualCheckIllegal = true
startFen = lh1ck1hl/pppppppp/8/8/8/8/PPPPPPPP/LH1CK1HL[LHMMDJlhmmdj] w - - 0 1
capturesToHand = false
dropRegionWhite = *1 *2 *3 *4
dropRegionBlack = *5 *6 *7 *8
immobilityIllegal = true
flagPiece = k
flagRegionWhite = *8
flagRegionBlack = *1
castling = false

# Two Kings v2
# Slightly different implementation of Two Kings chess.
# Variant defined in Pychess discord and previously playable with Chessboi bot.
[twokings2:chess]
king = -
commoner = k
extinctionValue = loss
extinctionPseudoRoyal = true
extinctionPieceTypes = k
extinctionPieceCount = 1
startFen = rnbkkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBKKBNR w - - 0 1

# Anti-Antichess
# Lose at anti-chess to win at anti-antichess.
# Variant defined in Liantichess website. Credits to SriMethan for the definition.
[antiantichess:giveaway]
extinctionValue = loss
stalemateValue = loss
castling = false

# Anti-Minishogi
# Hybrid of antichess and minishogi. This might look like a coffee variant, but it isn't.
# Variant defined in Liantichess website. Credits to SriMethan for the definition.
[antiminishogi:minishogi]
king = -
commoner = k
mustCapture = true
stalemateValue = win
extinctionValue = win
extinctionPieceTypes = *
extinctionPseudoRoyal = false

# Anti-House
# Hybrid of antichess and zh. Antichess is the base variant.
# Variant defined in Liantichess website. Credits to SriMethan for the definition.
[antihouse:giveaway]
pieceDrops = true
capturesToHand = true
pocketSize = 6
castling = false

# Coffee-Race
# Hybrid of rk and antichess --> SOLVED
# Variant defined in Liantichess website. Credits to SriMethan for the definition.
[coffeerace:racingkings]
mustCapture = true

# Epic Atomic
# Atomic with bigger board size and more pieces.
# Variant defined in Liatomic website. Credits to RaviharaV for the definition.
[epicatomic:atomic]
queen = q
bishop = b
knight = n
rook = r
pawn = p
promotionPieceTypes = b
blastOnCapture = true
castling = false
startFen = rnnbqkbnnr/pppppppppp/10/10/10/10/PPPPPPPPPP/RNNBQKBNNR w KQkq - 0 1
maxRank = 8
maxFile = 10
chess960 = false
promotionRegionWhite = *6 *7 *8 *9 *10
promotionRegionBlack = *5 *4 *3 *2 *1
doubleStep = true
castling = false

# Checkmateless chess
# Checks and checkmates can't be played. You have to get your enemy into a position where they are forced to make an illegal move (moving your king into check, checking, and checkmating your enemy are included as illegal moves) to win the variant.
# https://lichess.org/forum/team-variant-testers/checkmateless-chess
[checkmateless:chess]
checking = false
stalemateValue = loss

# Sixth Rank chess
# Reach the sixth rank to win.
# lichess.org/forum/team-variant-testers/sixth-rank-chess
[sixthrank:chess]
flagPiece = p
flagRegionWhite = *6
flagRegionBlack = *3

# Fullmoon chess
# Variant created by moonbay and inspired in Capablanca and Seirawan
# https://lichess.org/forum/team-variant-testers/fullmoon-chess-variant
[fullmoon:chess]
pieceToCharTable = PNBRQ..AC............Kpnbrq..ac............k
archbishop = a
chancellor = c
startFen = rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR[CAca] w - - 0 1
promotionPieceTypes = qcarbn
pieceDrops = true
dropRegionWhite = *1
dropRegionBlack = *8
castling = false
doubleStep = false
stalemateValue = loss

# Crowded Xiangqi
# Chinese Chess on half the board (5 × 9 intersections). Pawns (soldiers) are set to display as archbishops (via pieceToCharTable), so that WinBoard/XBoard won't disappear them on the last rank.
# https://github.com/fairy-stockfish/Fairy-Stockfish/issues/180
[crowdedxiangqi:xiangqi]
pieceToCharTable = .N.R.ABP.K.C...........n.r.abp.k.c..........
maxRank = 5
startFen = rnbakabnr/pcp1p1pcp/9/PCP1P1PCP/RNBAKABNR w - - 0 1
mobilityRegionBlackKing = d3 e3 f3 d4 e4 f4 d5 e5 f5
mobilityRegionBlackFers = d3 e3 f3 d4 e4 f4 d5 e5 f5
mobilityRegionBlackElephant = *1 *2 *3 *4 *5
soldierPromotionRank = 4

# Massacre
# Variant created by Andy Lewicki. Giveaway style but the board is full of pieces. Credits to Mtaktikos for the definition.
# https://brainking.com/en/GameRules?tp=128
[massacre:giveaway]
commoner = -
queen = -
rook = -
bishop = -
knight = -
pawn = -
customPiece1 = q:cQ
customPiece2 = b:cB
customPiece3 = n:cN
customPiece4 = r:cR
startFen = rBbnbqNn/bQrnQRRr/rrqbNqQb/bBNqbNBN/bNRrrrBQ/QRQqRnNB/qBRnnqNQ/BBQnqnRR w - - 0 1
stalemateValue = loss
extinctionValue = loss
extinctionPieceTypes = *
pieceToCharTable = .NBRQ..................nbrq.................

# Backrank
# The objective of the game is to reach the last rank with any of your pieces. Credits to Procyon for the definition
# Variant defined in Pychess discord and previously playable with Chessboi bot.
[backrank:chess]
king = -
commoner = k
castlingKingPiece = k
extinctionValue = loss
extinctionPieceTypes = k
extinctionPseudoRoyal = true
flagPiece = k
promotionPieceTypes = -
promotedPieceType = q:k r:k b:k n:k p:k
mandatoryPiecePromotion = true
flagRegionWhite = *8
flagRegionBlack = *1

# Stardust
# Variant invented by Couch Tomato, spaced-themed and inspired in Star Wars.
# Variant defined in Pychess discord and previously playable with Chessboi bot.
[stardust]
maxRank = 10
maxFile = 9
fers = t
immobile = p
gold = c
customPiece1 = x:mRcW
customPiece2 = d:FvW
customPiece3 = r:mQ2cW
customPiece4 = y:mRcD
customPiece5 = o:WcF
startFen = 3tot3/1p5p1/3XRX3/1d5d1/9/1p1t1t1p1/4d4/9/9/4C4[XXXXYYYYtttttttttd] w - - 0 1
pieceDrops = true
dropRegionWhite = *1 *2 *3 d4 e4 f4 d5 e5 f5 d6 e6 f6 *7 d8 e8 f8 d9 e9 f9 d10 e10 f10
dropRegionBlack = a4 b4 c4 g4 h4 i4 a5 b5 c5 g5 h5 i5 a6 b6 c6 g6 h6 i6 a8 b8 c8 g8 h8 i8 a9 b9 c9 g9 h9 i9 a10 b10 c10 g10 h10 i10
castling = false
mobilityRegionWhiteCustomPiece3 = *1 *2 *3 *4 a5 c5 d5 e5 f5 g5 i5 *6 *7 *8 a9 c9 d9 e9 f9 g9 i9 *10
# mobilityRegionBlackCustomPiece3 = b5 b9 h5 h9 
extinctionValue = loss
extinctionPieceTypes = rp
extinctionPseudoRoyal = true
flagPiece = r
flagRegionWhite = e2
nMoveRule = 50
nFoldRule = 3
nFoldValue = draw
stalemateValue = loss

# Cetus
# Variant invented by Couch Tomato, ocean-themed and inspired in whales and other marine mammals.
# Variant defined in Pychess discord and previously playable with Chessboi bot.
[cetus]
maxRank = 9
maxFile = 9
wazir = o
fers = k
customPiece1 = b:mQ3
customPiece2 = n:mF
customPiece3 = p:mW
customPiece4 = h:mB3
customPiece5 = s:mR3
customPiece6 = d:mN
startFen = 9/9/9/1b7/9/9/9/2B6/9[PPNHSDOppnnhhssdo]
pieceDrops = true
extinctionValue = loss
extinctionPieceTypes = b
piecePromotionOnCapture = true
mandatoryPiecePromotion = true
pieceDemotion = true
promotedPieceType = o:k
castling = false
connectN = 5
promotionRegionWhite = *1 *2 *3 *4 *5 *6 *7 *8 *9
promotionRegionBlack = *9 *8 *7 *6 *5 *4 *3 *2 *1

# Chess vs Hoppel-Poppel
# Asymmetrical game, Chess army vs Hoppel Poppel army. Credits to Procyon for the definition.
# Variant defined in Pychess discord and previously playable with Chessboi bot.
[chessvshp:chess]
soldier = s
king = k
bishop = b
knight = n
rook = r
promotionPieceTypes = -
knibis = i
biskni = j
promotionPieceTypes = nbrqij
pieceToCharTable = PNBRQ.......IJ.......Kpnbrq.......ij.......k
startFen = rijqkjir/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

# Orda vs Empire
# Asymmetrical game, Empire army vs Orda army. Empire (as Black again), no Soldiers, 8 x Imperial Pawns but on the 3rd rank. Empire rules in place. Yurt is a mNcK. Credits to Procyon for the definition.
# Variant defined in Pychess discord and previously playable with Chessboi bot.
[ordavsempire:chess]
centaur = h
knibis = a
kniroo = l
customPiece1 = e:mQcN
customPiece2 = c:mQcB
customPiece3 = t:mQcR
customPiece4 = d:mQcK
customPiece5 = y:mNcK
promotionPieceTypes = qh
startFen = tecdkcet/8/pppppppp/8/8/PPPPPPPP/8/LHAYKAHL w - - 0 1
stalemateValue = loss
nFoldValue = loss
flagPiece = k
flagRegionWhite = *8
flagRegionBlack = *1
flyingGeneral = true
pieceToCharTable = P...Q..AH..ECTDY....LKp...q..ah..ectdy....lk

# Atomic duck chess
# Atomic + duck chess hybrid.
# Playable as a custom variant in chess.com
[atomicduck:atomic]
wallingRule = duck
stalemateValue = win

#https://www.chessvariants.com/diffmove.dir/checkers.html
[forward:chess]
pieceToCharTable = PNBRQGE......S.F..LKpnbrqge......s.f..lk
#pieces move only forward. Not even sideways, so no castling.
castling = false
#I tried to pick letters that would remind people of the full piece.
startFen = lesfgsel/pppppppp/8/8/8/8/PPPPPPPP/LESFGSEL w KQkq - 0 1
lance = l
customPiece1 = g:fFfW
customPiece2 = e:ffNfsN
customPiece3 = s:fB
customPiece4 = f:fBfR
promotedPieceType = l:r e:n s:b f:q g:k
#since the king changes forms, should be an extinction variant
extinctionValue = loss
extinctionPieceTypes = kg
extinctionPseudoRoyal = true

[kono]
maxRank = 5
maxFile = e
customPiece1 = p:mF
startFen = ppppp/p3p/5/P3P/PPPPP w - - 0 1
flagPiece = p
flagRegionWhite = a5 b5 c5 d5 e5 a4 e4
flagRegionBlack = a1 b1 c1 d1 e1 a2 e2
flagPieceCount = 7
flagPieceBlockedWin = true
nFoldRule = 0
nMoveRule = 0

#https://www.chessvariants.com/large.dir/xhess.html
[xhess:chess]
pieceToCharTable = HNBRQ......CI........Khnbrq......ci........k
maxRank = 10
maxFile = j
promotionRegionWhite = *10
promotionPieceTypes = nbrqci
flagPiece = k
flagRegionWhite = *10
flagRegionBlack = *1
pawnTypes = h
cannon = c
customPiece1 = i:NN
customPiece2 = h:mfWcfFfhmnN
startFen = r8r/3nkqn3/hcb1ii1bch/1hhhhhhhh1/10/10/1HHHHHHHH1/HCB1II1BCH/3NKQN3/R8R
#technically not needed because of initial setup
##enPassantRegion = -
##castling = false

#https://boardgamegeek.com/boardgame/32/buffalo-chess
[buffalo]
pieceToCharTable = B...D................Cb...d................c
maxRank = 7
maxFile = k
customPiece1 = b:mfW
customPiece2 = c:K
customPiece3 = d:mQ
startFen = bbbbbbbbbbb/11/11/11/11/3DDCDD3/11 w - - 0 1
flagPiece = b
flagRegionBlack = *1
mobilityRegionWhiteCustomPiece2 = *2 *3 *4 *5 *6
mobilityRegionWhiteCustomPiece3 = *2 *3 *4 *5 *6
stalemateValue = loss

#https://www.zillions-of-games.com/cgi-bin/zilligames/submissions.cgi?do=show;id=1596
[knights-halma]
maxRank = 8
maxFile = h
customPiece1 = n:mN
startFen = 5nnn/5nnn/5nnn/8/8/NNN5/NNN5/NNN5 w
flagPiece = n
flagRegionWhite = f8 g8 h8 f7 g7 h7 g6 g6 h8
flagRegionBlack = a3 b3 c3 a2 b2 c2 a1 b1 c1
flagPieceCount = 9
stalemateValue = loss
nFoldRule = 2
nFoldValue = loss
nMoveRule = 0

#https://www.zillions-of-games.com/cgi-bin/zilligames/submissions.cgi/76202?do=show;id=83
#pawns can be caught in the blast in this one
[allexplodeatomic:nocheckatomic]
pawn = -
customPiece1 = p:fmWfceFifmnD
pawnTypes = p

#https://en.wikipedia.org/wiki/Hexapawn
#black wins
[hexapawn]
maxRank = 3
maxFile = c
startFen = ppp/3/PPP w
flagPiece = p
flagRegionWhite = *3
flagRegionBlack = *1
customPiece1 = p:mfWcfF
stalemateValue = loss

#https://ludii.games/details.php?keyword=1D%20Chess
#white wins
[1d-chess:chess]
maxRank = 1
maxFile = h
customPiece1 = n:D
startFen = KNR2rnk w

#https://ludii.games/details.php?keyword=T%27uk%20T%27uk
#The implementation on Ludii doesn't match the description. Ludii implements a Wazir, while the translated description is of a forwards and backwards (non-capturing) Rook.
#black wins
[tuktuk]
maxRank = 6
maxFile = f
customPiece1 = w:mvR
startFen = wwwwww/6/6/6/6/WWWWWW w
stalemateValue = loss
nFoldRule=0
nMoveRule=0

#https://ludii.games/details.php?keyword=Aralzaa
#possibly missing rules
#draw
[aralzaa]
maxRank = 3
maxFile = c
customPiece1 = n:mN
startFen = nnn/3/NNN w
flagPiece = n
flagRegionWhite = *3
flagRegionBlack = *1
flagPieceCount = 3
nFoldRule=0
nMoveRule=0

#https://ludii.games/variantDetails.php?keyword=Bajr&variant=1036
#Some ludii players speculate that it might be missing rules:
#https://ludii.games/forums/showthread.php?tid=762&highlight=bajr
#https://ludii.games/forums/showthread.php?tid=364&highlight=bajr
#but after looking at the translated description, the answer is, the pieces can't move backwards (they have the 3 moves that advance toward the goal).
#white wins
[bajr]
maxRank = 6
maxFile = f
customPiece1 = p:mfrWmrfF
startFen = 4pp/5p/6/6/P5/PP4 w
flagPiece = p
flagRegionWhite = e6 f6 f5
flagRegionBlack = a1 a2 b1
flagPieceCount = 3
nMoveRule=0

#https://ludii.games/details.php?keyword=Lewthwaite%27s%20Game
#black wins
[lewthwaite]
maxRank = 5
maxFile = e
customPiece1 = w:mW
startFen = wWwWw/WwWwW/wW1Ww/WwWwW/wWwWw w
stalemateValue = loss
nMoveRule = 0

[picaria:tictactoe]
#Known under multiple names but using the name from Wikipedia.
#https://ludii.games/details.php?keyword=Picaria https://en.wikipedia.org/wiki/Picaria
#https://ludii.games/details.php?keyword=Les%20Pendus
#https://ludii.games/details.php?keyword=Wure%20Dune
#https://ludii.games/details.php?keyword=Djara-Badakh
#https://ludii.games/details.php?keyword=Tuk%20Tak
customPiece1 = p:mKmNmAmD
#moves anywhere on the board, KNAD is a list of all possible moves on a 3x3
startFen = 3/3/3[PPPppp] w - - 0 1
mustDrop = true
nMoveRule = 0
nFoldRule = 0

[nineholes:picaria]
#https://ludii.games/details.php?keyword=Nine%20Holes https://en.wikipedia.org/wiki/Nine_Holes
#https://ludii.games/details.php?keyword=San-Noku-Narabe
#https://ludii.games/details.php?keyword=Driesticken
#https://ludii.games/details.php?keyword=Akidada
#https://ludii.games/details.php?keyword=Dris%20at-Talata
connectDiagonal = false

#https://ludii.games/details.php?keyword=Tic-Tac-Chess
[tictacchess:picaria]
startFen = 3/3/3[KQRkqr] w - - 0 1
customPiece1 = k:mKmgQ
customPiece2 = q:mQmgQ
customPiece3 = r:mRmgQ

[asimplegame]
#https://ludii.games/details.php?keyword=A%20Simple%20Game
maxRank = 4
maxFile = d
customPiece1 = p:mW
connectN = 3
startFen = pPpP/4/4/PpPp w - - 0 1
nMoveRule = 0
#according to Jan's own Zillions file, any repetition is a draw
nFoldRule = 2

[alapo:chess]
#https://www.chessvariants.org/small.dir/alapo.html
pieceToCharTable = ..BRQ.........FW.....K..brq.........fw.....k
maxRank = 6
maxFile = f
wazir = w
fers = f
king = -
commoner = k
startFen = rbqqbr/wfkkfw/6/6/WFKKFW/RBQQBR
flagRegionWhite = *6
flagRegionBlack = *1
flagPieceSafe = true
flagMove = true
stalemateValue = loss
nMoveRule = 0
nFoldRule = 0

[rooksquare:chess]
#https://www.chessvariants.com/diffobjective.dir/rooksquare.html
flagRegionWhite = a8 h8
flagRegionBlack = a1 h1

[allqueenschess]
#https://boardgamegeek.com/boardgame/34948/all-queens-chess
maxRank = 5
maxFile = e
startFen = qQqQq/5/Q3q/5/QqQqQ
customPiece1 = q:mQ
connectN = 4
nMoveRule = 0
nFoldRule = 0

#https://www.ludii.games/details.php?keyword=Capture%20the%20Queen
[capturethequeen]
startFen = 3q4/8/8/8/8/8/8/1QQ1QQ2
queen = q
extinctionPieceTypes = q
nFoldRule = 0
#default #nMoveRule = 50
materialCounting = blackdrawodds

#https://www.zillions-of-games.com/cgi-bin/zilligames/submissions.cgi?do=show;id=732
[river:chess]
king = -
commoner = k
castlingKingPiece = k
flagPiece = *
flagRegionWhite = *8
flagRegionBlack = *1

#https://www.zillions-of-games.com/cgi-bin/zilligames/submissions.cgi?do=show;id=237
[cowboys:amazons]
maxRank = 7
maxFile = g
customPiece1 = n:mN
pieceToCharTable = .N.....................n....................
startFen = 2n1n2/7/n5n/7/N5N/7/2N1N2 w - - 0 1

#https://www.zillions-of-games.com/cgi-bin/zilligames/submissions.cgi?do=show;id=1813
[dragon-chess:chess]
customPiece1 = b:BK
customPiece2 = n:NK
customPiece3 = p:KifmnD
customPiece4 = r:RK
castlingRookPieces = r
pawnTypes = p

[annexation:flipello]
maxRank = 10
maxFile = 10
startFen = ***4***/***4***/***4***/10/4pP4/4Pp4/10/***4***/***4***/***4***[PPPPPPPPPPPPPPPPPPPPPPPPPPPPPPpppppppppppppppppppppppppppppp] w 0 1

#https://www.chessvariants.com/shogivariants.dir/cannonshogi.html
[cannonshogi:shogi]
dropNoDoubled = -
shogiPawnDropMateIllegal = false
soldier = p
cannon = u
customPiece1 = a:pR
customPiece2 = c:mBcpB
customPiece3 = i:pB
customPiece4 = w:mRpRmFpB2
customPiece5 = f:mBpBmWpR2
promotedPieceType = u:w a:w c:f i:f p:g
startFen = lnsgkgsnl/1rci1uab1/p1p1p1p1p/9/9/9/P1P1P1P1P/1BAU1ICR1/LNSGKGSNL[-] w 0 1

#https://www.chessvariants.com/difftaking.dir/deadsquare.html
[nuclear:atomic]
#define a piece that looks exactly like a pawn, but is not one. Takes care of major differences:
#1. Pawns can be petrified.
#2. Pawns can be destroyed by explosions.
pawn = -
customPiece1 = p:fmWfceFifmnD
pawnTypes = p
petrifyOnCaptureTypes = pnbrq
enPassantRegion = -

#https://en.wikipedia.org/wiki/Nim
#FSF can be used to analyse Nim. The number of empty squares between the pieces is the number of items in the stack,
#the number in the custom piece is the number of items you can nim. This is the popular 1-3-5-7 stacks layout.
[nim]
maxRank = 9
maxFile = d
#if the Nim variant has special rules, ie.nimming<=3 pieces then:
#customPiece1 = p:mfR3
customPiece1 = p:mfR
startFen = 3p/4/2p1/4/1p2/4/p3/4/PPPP
stalemateValue = loss

#https://www.ludii.games/details.php?keyword=Roll-Ing%20to%20Four
[roll-ing-to-four]
maxRank = 10
maxFile = d
customPiece1 = p:mfFmfW
startFen = 1ppp/4/4/4/1PPP/ppp1/4/4/4/PPP1
connectN = 4

#https://www.ludii.games/details.php?keyword=Quad%20Wrangle
[quadwrangle:ataxx]
#different sources give different info on whether it is a 7x7 or 8x8 board.
#7x7 is below
maxRank = 8
maxFile = 8
startFen = 1PPPPPP1/p6P/p6P/p6P/p6P/p6P/p6P/1pppppp1
customPiece1 = p:mQ
flipEnclosedPieces = quadwrangle
#override rule from ataxx since drops can be done freely
enclosingDrop = none

[quadwrangle7x7:quadwrangle]
maxRank = 7
maxFile = 7
startFen = 1PPPPP1/p5P/p5P/p5P/p5P/p5P/1ppppp1

#https://www.ludii.games/details.php?keyword=Crusade
[crusade:quadwrangle]
startFen = PpPpPpPp/pPpPpPpP/PpPpPpPp/pPpPpPpP/PpPpPpPp/pPpPpPpP/PpPpPpPp/pPpPpPpP
customPiece1 = p:cK
flipEnclosedPieces = ataxx
pieceDrops = false
passOnStalemate = false

#https://www.ludii.games/details.php?keyword=Snort
#also known as Cats & Dogs
[snort:ataxx]
immobile = p
startFen = 8/8/8/8/8/8/8/8
enclosingDrop = snort
flipEnclosedPieces = none
maxRank = 8
maxFile = 8
passOnStalemate = false
stalematePieceCount = false

#https://www.chess.com/variants/blackletter-chess
[blackletter:chess]
pieceToCharTable = PNBRQ.......E...M...HKpnbrq.......e...m...hk
maxRank = 10
maxFile = 9
promotionRegionWhite = *10
promotionRegionBlack = *1
archbishop = e
chancellor = m
centaur = h
startFen = 1ebq1meb1/rn2k2nr/ppppppppp/9/9/9/9/PPPPPPPPP/RN2K2NR/1EBQ1MEB1[HHhh] w KQkq - 0 1
promotionPieceTypes = behmnqr
doubleStepRegionWhite = *3
doubleStepRegionBlack = *8
pieceDrops = true
castlingRank = 2

#https://www.chessvariants.com/winning.dir/castle.html
[castle:chess]
castlingWins = q

#https://github.com/yagu0/vchess/blob/master/client/src/translations/rules/Squatter1/en.pug
[squatter:chess]
flagRegionWhite = *8
flagRegionBlack = *1
flagPieceSafe = true

[opposite-castling:chess]
oppositeCastling = true

# A Kyoto Shogi variant with a left/right theme.
[gethenian]
maxRank = 7
maxFile = 7
king = -
customPiece1 = k:K
customPiece2 = q:mW
customPiece3 = b:lfrbB
customPiece4 = i:rflbB
customPiece5 = r:lrR
customPiece6 = n:hlN
customPiece7 = t:hrN
customPiece8 = m:WfF
customPiece9 = s:FfW
startFen = 2ikb2/2mnm2/7/7/7/2MNM2/2B+KI2[] w - - 0 1
promotionPieceTypes = -
promotedPieceType = k:q b:r i:r n:t m:s
promotionRegionWhite = *1 *2 *3 *4 *5 *6 *7
promotionRegionBlack = *7 *6 *5 *4 *3 *2 *1
mandatoryPiecePromotion = true
pieceDemotion = true
pieceDrops = true
capturesToHand = true
dropPromoted = true
immobilityIllegal = false
extinctionValue = loss
extinctionPieceTypes = kq
extinctionPseudoRoyal = true
stalemateValue = loss

#https://www.ludii.games/details.php?keyword=Gale
[gale:snort]
maxRank = 9
maxFile = 9
startFen = 1p1p1p1p1/P1P1P1P1P/1p1p1p1p1/P1P1P1P1P/1p1p1p1p1/P1P1P1P1P/1p1p1p1p1/P1P1P1P1P/1p1p1p1p1
enclosingDrop = none
connectRegion1White = a*
connectRegion2White = i*
connectRegion1Black = *1
connectRegion2Black = *9
#should be impossible anyway
connectDiagonal = false

#https://www.chessvariants.com/boardrules.dir/atlantis.html
[atlantis:chess]
wallingRule = edge
wallOrMove = true

#https://www.chessvariants.com/rules/ajax-orthodox-chess
[ajax-orthodox:chess]
pieceToCharTable = PNBRQ.............MKpnbrq.............mk
customPiece1 = r:RmF
customPiece2 = n:NmK
customPiece3 = b:BmW
customPiece4 = m:KAD
promotionPieceTypes = mqnbr
castling = true
castlingRookPieces = r
startFen = rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR[MMmm] w KQkq - 0 1
pieceDrops = true
dropRegionWhite = *1
dropRegionBlack = *8

#https://www.chessvariants.com/small.dir/petty.html
[petty:chess]
maxRank = 6
maxFile = 5
startFen = qkbnr/ppppp/5/5/PPPPP/QKBNR w - 0 1
castling = false
doubleStep = false
promotionRegionWhite = *6

#https://www.zillions-of-games.com/cgi-bin/zilligames/submissions.cgi?do=show;id=655
[teeko:picaria]
maxRank = 5
maxFile = 5
connectN = 4
connectNxN = 2
customPiece1 = p:mK
startFen = 5/5/5/5/5[PPPPpppp] w - - 0 1

#https://www.chessvariants.com/small.dir/haynie.html
[haynie:chess]
maxRank = 6
maxFile = 6
startFen = rbqkbr/pppppp/6/6/PPPPPP/RBQKBR w KQkq - 0 1
doubleStep = false
promotionPieceTypes = rbq
castlingQueensideFile = c
castlingKingsideFile = e
promotionRegionWhite = *6

#https://www.zillions-of-games.com/cgi-bin/zilligames/submissions.cgi?do=show;id=1367
[la-mancha-squeez:snailtrail]
pieceToCharTable = P.....................p.....................
maxRank = 9
maxFile = 9
startFen = p7P/9/9/9/3p*P3/9/9/9/p7P w 0 1

[la-mancha-duel:la-mancha-squeez]
customPiece1 = p:K

#https://www.chessvariants.com/diffsetup.dir/argess.html
[argess:chess]
pawnTypes = p
customPiece1 = p:mWcF
#yes, black moves first
startFen = rppppnbk/6qb/7n/7p/PPPP3p/RNPP3p/BQNP3p/KBRP3r b 0 1
castling = false
promotionRegionWhite = g8 h8 h7
promotionRegionBlack = a1 a2 b1

#https://www.chessvariants.com/rules/4-kings-quasi-shatranj
[quasi-shatranj:twokings2]
pieceToCharTable = PN....E...G..FZ....IAKpn....e...g..fz....iak
maxRank = 10
maxFile = 10
customPiece1 = a:AD
customPiece2 = e:AF
customPiece3 = f:AW
customPiece4 = i:DF
customPiece5 = z:DW
customPiece6 = g:K
extinctionPieceCount = 3
startFen = kifkaakfik/znegaagenz/pppppppppp/10/10/10/10/PPPPPPPPPP/ZNEGAAGENZ/KIFKAAKFIK w 0 1
promotionRegionWhite = *10
promotionPieceTypes = zangief
doubleStepRegionWhite = *3
doubleStepRegionBlack = *8

#https://www.zillions-of-games.com/cgi-bin/zilligames/submissions.cgi?do=show;id=1723
[symphony:tictactoe]
maxRank = 8
maxFile = 8
connectN = 5
customPiece1 = p:mfsW
nFoldRule = 3
startFen = 8/8/8/8/8/8/8/8[PPPPPPpppppp] w - - 0

#https://www.zillions-of-games.com/cgi-bin/zilligames/submissions.cgi?do=show;id=734
#am calling it cfour-anyside so it's less confusable with roll-ing-to-four
[cfour-anyside:cfour]
maxRank = 7
startFen = 7/7/7/7/7/7/7[PPPPPPPPPPPPPPPPPPPPPPPPPpppppppppppppppppppppppp] w - - 0 1
enclosingDrop = anyside

#http://gamescrafters.berkeley.edu/games.php?game=connect4
[cfour-misere:cfour]
connectValue = loss

#https://www.ludii.games/details.php?keyword=Three%20Musketeers
[three-musketeers]
pieceToCharTable = P......M..............p......m..............
startFen = ppppM/ppppp/ppMpp/ppppp/Mpppp
maxRank = 5
maxFile = 5
collinearN = 3
connectDiagonal = false
customPiece1 = m:cW
customPiece2 = p:mW
connectValue = loss
stalemateValue = win
connectPieceTypes = m

#https://www.pychess.org/variants/shinobiplus
[shinobiplus:crazyhouse]
pieceToCharTable = -
commoner = c
bers = d
dragonHorse = f
archbishop = j
fers = m
shogiKnight = h
lance = l
promotionRegionWhite = *7 *8
promotionRegionBlack = *1 *2 *3
promotionPieceTypes = -
promotedPieceType = p:c m:b h:n l:r
mandatoryPiecePromotion = true
stalemateValue = loss
nFoldRule = 4
perpetualCheckIllegal = true
startFen = rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/4K3[JDFCLHM] w kq - 0 1
capturesToHand = false
dropRegionWhite = *1 *2 *3 *4
immobilityIllegal = true
flagPiece = k
flagRegionWhite = *8
flagRegionBlack = *1

#https://www.pychess.org/variants/khans
[khans:chess]
pieceToCharTable = -
centaur = h
knibis = a
kniroo = l
customPiece1 = t:mNcK
customPiece2 = s:mfhNcfW
promotionPawnTypesBlack = s
promotionPieceTypesBlack = t
stalemateValue = loss
nMoveRuleTypesBlack = s
flagPiece = k
flagRegionWhite = *8
flagRegionBlack = *1
startFen = lhatkahl/ssssssss/8/8/8/8/PPPPPPPP/RNBQKBNR w KQ - 0 1

[muje]
variantTemplate = shogi
pieceToCharTable = PNBR.F.IS..+Kpnbr.f.is..+k
maxFile = 9
maxRank = 9
pocketSize = 7
startFen = rnbfkfbnr/1si3is1/p1p1p1p1p/9/9/9/P1P1P1P1P/1SI3IS1/RNBFKFBNR[] w - - 0 1
pieceDrops = true
capturesToHand = true
soldier = p
knight = n
bishop = b
rook = r
fers = f
wazir = w
king = k
customPiece1 = i:pB
customPiece2 = s:pR
promotionRegionWhite = *7 *8 *9
promotionRegionBlack = *3 *2 *1
promotedPieceType = p:w
doubleStep = false
castling = false
stalemateValue = loss
nMoveRule = 0
nFoldValue = loss
perpetualCheckIllegal = true
mobilityRegionWhiteKing = *3 *2 *1
mobilityRegionBlackKing = *7 *8 *9
mandatoryPiecePromotion = true

#https://www.chessvariants.com/diffobjective.dir/giveaway.html
#When stalemate, the stalemated player does not move but the opponent can if he wish to play for win go on moving and do as many moves he wants to do. 
#If the stalemate then disappear, both players move again as usual. So, if white for example has a pawn on h2 and nothing more and black a pawn on h3, pawn on a7 and rooks on a8 and h8 
# black can win by moving : 1.-,Rh4 2.-, a5. 3.-, a4 4.- Ra5 5.-,a3 6.-,a2 7.-,a1=R 8.-,Rg1 9.-,Rg3 10.hxg3,h2 11.gxh4,Rg5 12.hxg5,h1=Q 13.g6,Qh7 14.gxh7 and black has won.
[andersgiveaway:giveaway]
passOnStalemate = true

[andersanti:antichess]
passOnStalemate = true

# A 10x10 drop variant consisting of only Leapers, Shogi pawns, and Kings.
[leaperhouse]
variantTemplate = shogi
pieceToCharTable = PN...OU.CR.+Kpn...ou.cr.+k
maxFile = 10
maxRank = 10
pocketSize = 6
startFen = oncurkucno/10/pppppppppp/10/10/10/10/PPPPPPPPPP/10/ONCUKRUCNO[] w - - 0 1
pieceDrops = true
capturesToHand = true
shogiPawn = p
knight = n
customPiece1 = u:Z
customPiece2 = c:C
customPiece3 = r:GH
customPiece4 = o:AD
commoner = g
king = k
promotionRegionWhite = *8 *9 *10
promotionRegionBlack = *3 *2 *1
promotedPieceType = p:g
doubleStep = false
castling = false
perpetualCheckIllegal = true
dropNoDoubled = p
stalemateValue = loss
nMoveRule = 0
nFoldValue = loss
flagPiece = k
flagRegionWhite = *10
flagRegionBlack = *1
immobilityIllegal = true
mandatoryPiecePromotion = true

# Iron pieces demo: pawns are uncapturable; everything else behaves normally.
[iron-pawns:chess]
ironPieceTypes = p