A board for Horde Chess and Dunsany's Chess (Defaults are set to lichess.org (SF) variant) More...

#include <hordeboard.h>

Inheritance diagram for Chess::HordeBoard:

Public Member Functions
virtual Board *	copy () const

virtual QString	defaultFenString () const

	HordeBoard ()

virtual Result	result ()

virtual QString	variant () const

Public Member Functions inherited from Chess::StandardBoard
virtual Board *	copy () const

virtual QString	defaultFenString () const

	StandardBoard ()

virtual Result	tablebaseResult (unsigned int *dtm=nullptr) const

virtual QString	variant () const

Public Member Functions inherited from Chess::WesternBoard
virtual int	height () const

virtual Result	result ()

virtual int	reversibleMoveCount () const

	WesternBoard (WesternZobrist *zobrist)

virtual int	width () const

Public Member Functions inherited from Chess::Board
	Board (Zobrist *zobrist)

virtual CoordinateSystem	coordinateSystem () const

virtual Board *	copy () const =0

virtual QString	defaultFenString () const =0

QString	fenString (FenNotation notation=XFen) const

GenericMove	genericMove (const Move &move) const

virtual int	height () const =0

void	initialize ()

bool	isLegalMove (const Move &move)

virtual bool	isRandomVariant () const

bool	isRepetition (const Move &move)

bool	isValidSquare (const Square &square) const

quint64	key () const

QVector< Move >	legalMoves ()

void	makeMove (const Move &move, BoardTransition *transition=nullptr)

Move	moveFromGenericMove (const GenericMove &move) const

Move	moveFromString (const QString &str)

QString	moveString (const Move &move, MoveNotation notation)

Piece	pieceAt (const Square &square) const

Piece	pieceFromSymbol (const QString &pieceSymbol) const

QStringList	pieceList (Side side) const

QString	pieceString (int pieceType) const

QString	pieceSymbol (Piece piece) const

int	plyCount () const

int	repeatCount () const

QString	representation (Piece piece) const

int	reserveCount (Piece piece) const

virtual QList< Piece >	reservePieceTypes () const

void	reset ()

virtual Result	result ()=0

virtual int	reversibleMoveCount () const

bool	setFenString (const QString &fen)

Side	sideToMove () const

QString	startingFenString () const

Side	startingSide () const

virtual Result	tablebaseResult (unsigned int *dtm=nullptr) const

void	undoMove ()

virtual Side	upperCaseSide () const

virtual QString	variant () const =0

virtual bool	variantHasDrops () const

virtual bool	variantHasWallSquares () const

virtual int	width () const =0

virtual	~Board ()

Protected Member Functions
virtual bool	kingsCountAssertion (int whiteKings, int blackKings) const

virtual bool	vIsLegalMove (const Move &m)

Protected Member Functions inherited from Chess::WesternBoard
virtual void	addPromotions (int sourceSquare, int targetSquare, QVarLengthArray< Move > &moves) const

virtual int	captureType (const Move &move) const

virtual int	castlingFile (CastlingSide castlingSide) const

int	enpassantSquare () const

virtual void	generateMovesForPiece (QVarLengthArray< Move > &moves, int pieceType, int square) const

virtual bool	hasCastling () const

bool	hasCastlingRight (Side side, CastlingSide castlingSide) const

virtual bool	hasEnPassantCaptures () const

virtual bool	inCheck (Side side, int square=0) const

virtual bool	isLegalPosition ()

virtual bool	kingCanCapture () const

virtual bool	kingsCountAssertion (int whiteKings, int blackKings) const

int	kingSquare (Side side) const

virtual QString	lanMoveString (const Move &move)

virtual Move	moveFromLanString (const QString &str)

virtual Move	moveFromSanString (const QString &str)

virtual bool	parseCastlingRights (QChar c)

int	pawnAmbiguity (StepType type=FreeStep) const

virtual bool	pawnHasDoubleStep () const

void	removeCastlingRights (int square)

void	removeCastlingRights (Side side)

virtual QString	sanMoveString (const Move &move)

virtual bool	variantHasChanneling (Side side, int square) const

virtual QString	vFenIncludeString (FenNotation notation) const

virtual QString	vFenString (FenNotation notation) const

virtual void	vInitialize ()

virtual bool	vIsLegalMove (const Move &move)

virtual void	vMakeMove (const Move &move, BoardTransition *transition)

virtual bool	vSetFenString (const QStringList &fen)

virtual void	vUndoMove (const Move &move)

Protected Member Functions inherited from Chess::Board
void	addToReserve (const Piece &piece, int count=1)

int	arraySize () const

bool	canMove ()

virtual int	captureType (const Move &move) const

Square	chessSquare (const QString &str) const

Square	chessSquare (int index) const

void	generateDropMoves (QVarLengthArray< Move > &moves, int pieceType) const

void	generateHoppingMoves (int sourceSquare, const QVarLengthArray< int > &offsets, QVarLengthArray< Move > &moves) const

void	generateMoves (QVarLengthArray< Move > &moves, int pieceType=Piece::NoPiece) const

virtual void	generateMovesForPiece (QVarLengthArray< Move > &moves, int pieceType, int square) const =0

void	generateSlidingMoves (int sourceSquare, const QVarLengthArray< int > &offsets, QVarLengthArray< Move > &moves) const

virtual bool	isLegalPosition ()=0

virtual QString	lanMoveString (const Move &move)

const Move &	lastMove () const

virtual int	maxPieceSymbolLength () const

bool	moveExists (const Move &move) const

virtual Move	moveFromLanString (const QString &str)

virtual Move	moveFromSanString (const QString &str)=0

Piece	pieceAt (int square) const

bool	pieceHasMovement (int pieceType, unsigned movement) const

void	removeFromReserve (const Piece &piece)

virtual int	reserveType (int pieceType) const

virtual QString	sanMoveString (const Move &move)=0

void	setPieceType (int type, const QString &name, const QString &symbol, unsigned movement=0, const QString &gsymbol=QString())

void	setSquare (int square, Piece piece)

int	squareIndex (const QString &str) const

int	squareIndex (const Square &square) const

QString	squareString (const Square &square) const

QString	squareString (int index) const

virtual QString	vFenString (FenNotation notation) const =0

virtual void	vInitialize ()=0

virtual bool	vIsLegalMove (const Move &move)

virtual void	vMakeMove (const Move &move, BoardTransition *transition)=0

virtual bool	vSetFenString (const QStringList &fen)=0

virtual void	vUndoMove (const Move &move)=0

void	xorKey (quint64 key)

Additional Inherited Members
Public Types inherited from Chess::WesternBoard
enum	WesternPieceType { Pawn = 1 , Knight , Bishop , Rook , Queen , King }

Public Types inherited from Chess::Board
enum	CoordinateSystem { NormalCoordinates , InvertedCoordinates }

enum	FenNotation { XFen , ShredderFen }

enum	MoveNotation { StandardAlgebraic , LongAlgebraic }

Protected Types inherited from Chess::WesternBoard
enum	CastlingSide { QueenSide , KingSide , NoCastlingSide }

enum	StepType { NoStep = 0 , FreeStep = 1 , CaptureStep = 2 }

Protected Attributes inherited from Chess::WesternBoard
QVarLengthArray< PawnStep, 8 >	m_pawnSteps

Static Protected Attributes inherited from Chess::WesternBoard
static const unsigned	BishopMovement = 4

static const unsigned	KnightMovement = 2

static const unsigned	RookMovement = 8

Detailed Description

A board for Horde Chess and Dunsany's Chess (Defaults are set to lichess.org (SF) variant)

Horde chess is a variant of standard chess with different setup. It is similar to a variant introduced by Lord Dunsany in 1942.

The black side plays with a standard set of pieces. However white has 36 pawns and no other pieces.

White has to mate the black king, black has to capture all pawns of the white horde in order to win. Standard chess rules apply. White pawns on the first and second ranks can make a double step.

Note: Rules: https://en.wikipedia.org/wiki/Dunsany%27s_chess#Horde_Chess

HordeBoard uses Polyglot-compatible zobrist position keys, so Horde Chess opening books in Polyglot format can be used.

Note: Standard Chess Rules: http://www.fide.com/component/handbook/?id=124&view=article

See also: PolyglotBook

Constructor & Destructor Documentation

◆ HordeBoard()

Chess::HordeBoard::HordeBoard ( )

Creates a new HordeBoard object.

Member Function Documentation

◆ copy()

Board * Chess::HordeBoard::copy ( ) const

virtual

Creates and returns a deep copy of this board.

Reimplemented from Chess::StandardBoard.

◆ defaultFenString()

QString Chess::HordeBoard::defaultFenString ( ) const

virtual

Horde chess, lichess.org variant has 36 white pawns and starting FEN rnbqkbnr/pppppppp/8/1PP2PP1/PPPPPPPP/PPPPPPPP/PPPPPPPP/PPPPPPPP w kq - 0 1 Dunsany's chess only has 32 white pawns and black starts with FEN rnbqkbnr/pppppppp/8/8/PPPPPPPP/PPPPPPPP/PPPPPPPP/PPPPPPPP b kq - 0 1 Original Horde chess has 32 black pawns vs a white standard set of pieces ppp2ppp/pppppppp/pppppppp/pppppppp/3pp3/8/PPPPPPPP/RNBQKBNR w KQ - 0 1

Reimplemented from Chess::StandardBoard.

◆ kingsCountAssertion()

bool Chess::HordeBoard::kingsCountAssertion	(	int	whiteKings,
		int	blackKings
	)		const

protectedvirtual

Returns true if both counts of kings given by whiteKings and blackKings are correct. WesternBoard expects exactly one king per side.

See also: AntiBoard; HordeBoard

Reimplemented from Chess::WesternBoard.

◆ result()

Result Chess::HordeBoard::result ( )

virtual

Returns the result of the game, or Result::NoResult if the game is in progress.

Reimplemented from Chess::WesternBoard.

◆ variant()

QString Chess::HordeBoard::variant ( ) const

virtual

Returns the name of the chess variant.

Reimplemented from Chess::StandardBoard.

◆ vIsLegalMove()

bool Chess::HordeBoard::vIsLegalMove ( const Move & move )

protectedvirtual

Returns true if move is a legal move.

This function is called by isLegalMove() after making sure that there is a pseudo-legal move same as move. This function shouldn't check for the existence of move by generating moves.

The default implementation only checks if the position after move is legal.

Reimplemented from Chess::WesternBoard.

The documentation for this class was generated from the following files:

projects/lib/src/board/hordeboard.h
projects/lib/src/board/hordeboard.cpp

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ HordeBoard()

Member Function Documentation

◆ copy()

◆ defaultFenString()

◆ kingsCountAssertion()

◆ result()

◆ variant()

◆ vIsLegalMove()