chess-base
v1.2.0
Published
chess board logic
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Chess board
Chess board logic
const chess = new Chess();
const chess = new Chess(
"rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"
);
chess.toFen();
// rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
chess.getSquare("e2");
// { square: 'e2', piece: { type: 'p', color: 'w' } }
chess.getMoves("b1");
// [{ square: "c3", piece: null }, { square: "a3", piece: null }];
chess.move("e2", "e4");
chess.toAscii();
// ♜ ♞ ♝ ♛ ♚ ♝ ♞ ♜
// ♟ ♟ ♟ ♟ ♟ ♟ ♟ ♟
//
//
// ♙
//
// ♙ ♙ ♙ ♙ ♙ ♙ ♙
// ♖ ♘ ♗ ♕ ♔ ♗ ♘ ♖
const chess = new Chess();
chess.move("e4"); // SAN (Standard Algebraic Notation)
chess.toAscii();
// ♜ ♞ ♝ ♛ ♚ ♝ ♞ ♜
// ♟ ♟ ♟ ♟ ♟ ♟ ♟ ♟
//
//
// ♙
//
// ♙ ♙ ♙ ♙ ♙ ♙ ♙
// ♖ ♘ ♗ ♕ ♔ ♗ ♘ ♖
const chess = new Chess(
"r1bqkbnr/ppp2ppp/2np4/4p3/2B5/4PN2/PPPP1PPP/RNBQK2R w KQkq - 2 4"
);
chess.toAscii();
// ♜ ♝ ♛ ♚ ♝ ♞ ♜
// ♟ ♟ ♟ ♟ ♟ ♟
// ♞ ♟
// ♟
// ♗
// ♙ ♘
// ♙ ♙ ♙ ♙ ♙ ♙ ♙
// ♖ ♘ ♗ ♕ ♔ ♖
chess.castlingKing();
chess.toAscii();
// ♜ ♝ ♛ ♚ ♝ ♞ ♜
// ♟ ♟ ♟ ♟ ♟ ♟
// ♞ ♟
// ♟
// ♗
// ♙ ♘
// ♙ ♙ ♙ ♙ ♙ ♙ ♙
// ♖ ♘ ♗ ♕ ♖ ♔
chess.castlingQeen();
// throw "castling invalid";
const chess = new Chess(
"r1bqkbnr/ppp2ppp/2np4/4p3/2B5/4PN2/PPPP1PPP/RNBQK2R w KQkq - 2 4"
);
chess.toAscii();
// ♜ ♝ ♛ ♚ ♝ ♞ ♜
// ♟ ♟ ♟ ♟ ♟ ♟
// ♞ ♟
// ♟
// ♗
// ♙ ♘
// ♙ ♙ ♙ ♙ ♙ ♙ ♙
// ♖ ♘ ♗ ♕ ♔ ♖
chess.target("e1");
// false
chess.target("e5");
// true
chess.targetKing();
// false
const chess = new Chess();
chess.getMovesTurn();
// [ { piece: { type: 'n', color: 'w' },
// from: 'b1',
// to: 'c3',
// capture: null },
// { piece: { type: 'n', color: 'w' },
// from: 'b1',
// to: 'a3',
// capture: null },
// { piece: { type: 'n', color: 'w' },
// from: 'g1',
// to: 'h3',
// capture: null },
// { piece: { type: 'n', color: 'w' },
// from: 'g1',
// to: 'f3',
// capture: null },
// { piece: { type: 'p', color: 'w' },
// from: 'a2',
// to: 'a3',
// capture: null },
// { piece: { type: 'p', color: 'w' },
// from: 'a2',
// to: 'a4',
// capture: null },
// { piece: { type: 'p', color: 'w' },
// from: 'b2',
// to: 'b3',
// capture: null },
// { piece: { type: 'p', color: 'w' },
// from: 'b2',
// to: 'b4',
// capture: null },
// { piece: { type: 'p', color: 'w' },
// from: 'c2',
// to: 'c3',
// capture: null },
// { piece: { type: 'p', color: 'w' },
// from: 'c2',
// to: 'c4',
// capture: null },
// { piece: { type: 'p', color: 'w' },
// from: 'd2',
// to: 'd3',
// capture: null },
// { piece: { type: 'p', color: 'w' },
// from: 'd2',
// to: 'd4',
// capture: null },
// { piece: { type: 'p', color: 'w' },
// from: 'e2',
// to: 'e3',
// capture: null },
// { piece: { type: 'p', color: 'w' },
// from: 'e2',
// to: 'e4',
// capture: null },
// { piece: { type: 'p', color: 'w' },
// from: 'f2',
// to: 'f3',
// capture: null },
// { piece: { type: 'p', color: 'w' },
// from: 'f2',
// to: 'f4',
// capture: null },
// { piece: { type: 'p', color: 'w' },
// from: 'g2',
// to: 'g3',
// capture: null },
// { piece: { type: 'p', color: 'w' },
// from: 'g2',
// to: 'g4',
// capture: null },
// { piece: { type: 'p', color: 'w' },
// from: 'h2',
// to: 'h3',
// capture: null },
// { piece: { type: 'p', color: 'w' },
// from: 'h2',
// to: 'h4',
// capture: null } ]