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return moves;
}
- getCastleMoves([x, y]) {
+ // "castleInCheck" arg to let some variants castle under check
+ getCastleMoves([x, y], castleInCheck) {
const c = this.getColor(x, y);
if (x != (c == "w" ? V.size.x - 1 : 0) || y != this.INIT_COL_KING[c])
return []; //x isn't first rank, or king has moved (shortcut)
if (this.castleFlags[c][castleSide] >= V.size.y) continue;
// If this code is reached, rooks and king are on initial position
+ // NOTE: in some variants this is not a rook, but let's keep variable name
const rookPos = this.castleFlags[c][castleSide];
+ const castlingPiece = this.getPiece(x, rookPos);
if (this.getColor(x, rookPos) != c)
// Rook is here but changed color (see Benedict)
continue;
i = y;
do {
if (
- this.isAttacked([x, i], oppCol) ||
+ (!castleInCheck && this.isAttacked([x, i], oppCol)) ||
(this.board[x][i] != V.EMPTY &&
// NOTE: next check is enough, because of chessboard constraints
(this.getColor(x, i) != c ||
- ![V.KING, V.ROOK].includes(this.getPiece(x, i))))
+ ![V.KING, castlingPiece].includes(this.getPiece(x, i))))
) {
continue castlingCheck;
}
new Move({
appear: [
new PiPo({ x: x, y: finalSquares[castleSide][0], p: V.KING, c: c }),
- new PiPo({ x: x, y: finalSquares[castleSide][1], p: V.ROOK, c: c })
+ new PiPo({ x: x, y: finalSquares[castleSide][1], p: castlingPiece, c: c })
],
vanish: [
new PiPo({ x: x, y: y, p: V.KING, c: c }),
- new PiPo({ x: x, y: rookPos, p: V.ROOK, c: c })
+ new PiPo({ x: x, y: rookPos, p: castlingPiece, c: c })
],
end:
Math.abs(y - rookPos) <= 2
#gameContainer
#boardContainer
Board(
+ ref="board"
:vr="vr"
:last-move="lastMove"
:analyze="game.mode=='analyze'"
},
// "light": if gotoMove() or gotoEnd()
play: function(move, received, light, noemit) {
+ // Freeze while choices are shown:
+ if (this.$refs["board"].choices.length > 0) return;
if (!!noemit) {
if (this.inPlay) {
// Received moves in observed games can arrive too fast:
},
// "light": if gotoMove() or gotoBegin()
undo: function(move, light) {
+ // Freeze while choices are shown:
+ if (this.$refs["board"].choices.length > 0) return;
if (this.inMultimove) {
this.cancelCurrentMultimove();
this.incheck = this.vr.getCheckSquares(this.vr.turn);
}
},
gotoMove: function(index) {
+ if (this.$refs["board"].choices.length > 0) return;
if (this.inMultimove) this.cancelCurrentMultimove();
if (index == this.cursor) return;
if (index < this.cursor) {
this.emitFenIfAnalyze();
},
gotoBegin: function() {
+ if (this.$refs["board"].choices.length > 0) return;
if (this.inMultimove) this.cancelCurrentMultimove();
const minCursor =
this.moves.length > 0 && this.moves[0].notation == "..."
this.emitFenIfAnalyze();
},
gotoEnd: function() {
+ if (this.$refs["board"].choices.length > 0) return;
if (this.cursor == this.moves.length - 1) return;
this.gotoMove(this.moves.length - 1);
this.emitFenIfAnalyze();
},
flip: function() {
+ if (this.$refs["board"].choices.length > 0) return;
this.orientation = V.GetOppCol(this.orientation);
}
}
"Move twice": "Move twice",
"Neverending rows": "Neverending rows",
"Pawns move diagonally": "Pawns move diagonally",
+ "Powerful pieces": "Powerful pieces",
"Queen disguised as a pawn": "Queen disguised as a pawn",
"Reuse pieces": "Reuse pieces",
"Reverse captures": "Reverse captures",
"Move twice": "Mover dos veces",
"Neverending rows": "Filas interminables",
"Pawns move diagonally": "Peones se mueven en diagonal",
+ "Powerful pieces": "Piezas poderosas",
"Queen disguised as a pawn": "Reina disfrazada de peón",
"Reuse pieces": "Reutilizar piezas",
"Reverse captures": "Capturas invertidas",
"Move twice": "Jouer deux coups",
"Neverending rows": "Rangées sans fin",
"Pawns move diagonally": "Les pions vont en diagonale",
+ "Powerful pieces": "Pièces puissantes",
"Queen disguised as a pawn": "Reine déguisée en pion",
"Reuse pieces": "Réutiliser les pièces",
"Reverse captures": "Captures inversées",
--- /dev/null
+p.boxed
+ | Three new pieces appear, combining the movements of the knight
+ | with those of the queen, rook or bishop.
+
+figure.diagram-container
+ .diagram
+ | fen:esqakbnr/pppppppp/8/8/8/8/PPPPPPPP/ESQAKBNR:
+ figcaption.
+ Standard initial position: empresses, princesses and amazons
+ respectively on a, b and d files.
+
+p As the pictures suggest,
+ul
+ li The Amazon (A) moves like a queen + knight,
+ li The Empress (E) moves like a rook + knight,
+ li the Princess (S) moves like a bishop + knight.
+
+p.
+ Note: in the original version of the rules the fairy pieces
+ are called General, Chancellor and Minister.
+
+h3 Source
+
+p
+ a(href="https://www.chessvariants.com/diffmove.dir/perfectchess.html") Perfect chess
+ | on chessvariants.com.
+ | You can also play this variant
+ a(href="https://greenchess.net/rules.php?v=perfect") on greenchess
+ | .
+
+p Inventor: Köksal Karakus (2000)
--- /dev/null
+p.boxed
+ | Aparecen tres piezas nuevas que combinan los movimientos del caballo
+ | con los de la dama, la torre o el loco.
+
+figure.diagram-container
+ .diagram
+ | fen:esqakbnr/pppppppp/8/8/8/8/PPPPPPPP/ESQAKBNR:
+ figcaption.
+ Posición inicial estándar: emperatriz, princesas y amazonas.
+ están respectivamente en las columnas a, b y d.
+
+p Como sugiere la imagen,
+ul
+ li The Amazon (A) se mueve como una dama + caballo,
+ li La emperatriz (E) se mueve como una torre + caballo,
+ li La princesa (S) se mueve como un alfil + caballo.
+
+p.
+ Nota: en la versión original de estas reglas, las piezas mágicas son
+ llamado General, Canciller y Ministro.
+
+h3 Fuente
+
+p
+ | La
+ a(href="https://www.chessvariants.com/diffmove.dir/perfectchess.html") variante Perfect
+ | en chessvariants.com.
+ | Esta variante también es jugable
+ a(href="https://greenchess.net/rules.php?v=perfect") en greenchess
+ | .
+
+p Inventor: Köksal Karakus (2000)
--- /dev/null
+p.boxed
+ | Trois nouvelles pièces apparaissent, combinant les déplacements du cavalier
+ | avec ceux de la dame, de la tour ou du fou.
+
+figure.diagram-container
+ .diagram
+ | fen:esqakbnr/pppppppp/8/8/8/8/PPPPPPPP/ESQAKBNR:
+ figcaption.
+ Position de départ standard : les impératrices, princesses et amazones
+ sont respectivement sur les colonnes a, b et d.
+
+p Comme suggéré par l'image,
+ul
+ li L'Amazone (A) se déplace comme une dame + cavalier,
+ li L'Impératrice (E) se déplace comme une tour + cavalier,
+ li La Princesse (S) se déplace comme un fou + cavalier.
+
+p.
+ Note : dans la version d'ortigine de ces règles, les pièces féériques sont
+ appelées Général, Chancelier et Ministre.
+
+h3 Source
+
+p
+ | La
+ a(href="https://www.chessvariants.com/diffmove.dir/perfectchess.html") variante Perfect
+ | sur chessvariants.com.
+ | Cette variante est également jouable
+ a(href="https://greenchess.net/rules.php?v=perfect") sur greenchess
+ | .
+
+p Inventeur : Köksal Karakus (2000)
}
// No "under check" conditions in castling
- getCastleMoves([x, y]) {
- const c = this.getColor(x, y);
- if (x != (c == "w" ? V.size.x - 1 : 0) || y != this.INIT_COL_KING[c])
- return []; //x isn't first rank, or king has moved (shortcut)
-
- // Castling ?
- const oppCol = V.GetOppCol(c);
- let moves = [];
- let i = 0;
- // King, then rook:
- const finalSquares = [
- [2, 3],
- [V.size.y - 2, V.size.y - 3]
- ];
- castlingCheck: for (
- let castleSide = 0;
- castleSide < 2;
- castleSide++ //large, then small
- ) {
- if (this.castleFlags[c][castleSide] >= 8) continue;
- // If this code is reached, rooks and king are on initial position
-
- // Nothing on the path of the king ? (and no checks)
- const finDist = finalSquares[castleSide][0] - y;
- let step = finDist / Math.max(1, Math.abs(finDist));
- for (let i = y; i != finalSquares[castleSide][0]; i += step) {
- if (
- this.board[x][i] != V.EMPTY &&
- // NOTE: next check is enough, because of chessboard constraints
- (this.getColor(x, i) != c ||
- ![V.KING, V.ROOK].includes(this.getPiece(x, i)))
- ) {
- continue castlingCheck;
- }
- }
-
- // Nothing on the path to the rook?
- step = castleSide == 0 ? -1 : 1;
- const rookPos = this.castleFlags[c][castleSide];
- for (i = y + step; i != rookPos; i += step) {
- if (this.board[x][i] != V.EMPTY) continue castlingCheck;
- }
-
- // Nothing on final squares, except maybe king and castling rook?
- for (i = 0; i < 2; i++) {
- if (
- this.board[x][finalSquares[castleSide][i]] != V.EMPTY &&
- this.getPiece(x, finalSquares[castleSide][i]) != V.KING &&
- finalSquares[castleSide][i] != rookPos
- ) {
- continue castlingCheck;
- }
- }
-
- // If this code is reached, castle is valid
- moves.push(
- new Move({
- appear: [
- new PiPo({ x: x, y: finalSquares[castleSide][0], p: V.KING, c: c }),
- new PiPo({ x: x, y: finalSquares[castleSide][1], p: V.ROOK, c: c })
- ],
- vanish: [
- new PiPo({ x: x, y: y, p: V.KING, c: c }),
- new PiPo({ x: x, y: rookPos, p: V.ROOK, c: c })
- ],
- end:
- Math.abs(y - rookPos) <= 2
- ? { x: x, y: rookPos }
- : { x: x, y: y + 2 * (castleSide == 0 ? -1 : 1) }
- })
- );
- }
-
- return moves;
+ getCastleMoves(sq) {
+ return super.getCastleMoves(sq, "castleInCheck");
}
// TODO: allow pieces to "commit suicide"? (Currently yes except king)
}
// No "under check" conditions in castling
- getCastleMoves([x, y]) {
- const c = this.getColor(x, y);
- if (x != (c == "w" ? V.size.x - 1 : 0) || y != this.INIT_COL_KING[c])
- return []; //x isn't first rank, or king has moved (shortcut)
-
- // Castling ?
- const oppCol = V.GetOppCol(c);
- let moves = [];
- let i = 0;
- // King, then rook:
- const finalSquares = [
- [2, 3],
- [V.size.y - 2, V.size.y - 3]
- ];
- castlingCheck: for (
- let castleSide = 0;
- castleSide < 2;
- castleSide++ //large, then small
- ) {
- if (this.castleFlags[c][castleSide] >= 8) continue;
- // If this code is reached, rooks and king are on initial position
-
- // Nothing on the path of the king ? (and no checks)
- const finDist = finalSquares[castleSide][0] - y;
- let step = finDist / Math.max(1, Math.abs(finDist));
- for (let i = y; i != finalSquares[castleSide][0]; i += step) {
- if (
- this.board[x][i] != V.EMPTY &&
- // NOTE: next check is enough, because of chessboard constraints
- (this.getColor(x, i) != c ||
- ![V.KING, V.ROOK].includes(this.getPiece(x, i)))
- ) {
- continue castlingCheck;
- }
- }
-
- // Nothing on the path to the rook?
- step = castleSide == 0 ? -1 : 1;
- const rookPos = this.castleFlags[c][castleSide];
- for (i = y + step; i != rookPos; i += step) {
- if (this.board[x][i] != V.EMPTY) continue castlingCheck;
- }
-
- // Nothing on final squares, except maybe king and castling rook?
- for (i = 0; i < 2; i++) {
- if (
- this.board[x][finalSquares[castleSide][i]] != V.EMPTY &&
- this.getPiece(x, finalSquares[castleSide][i]) != V.KING &&
- finalSquares[castleSide][i] != rookPos
- ) {
- continue castlingCheck;
- }
- }
-
- // If this code is reached, castle is valid
- moves.push(
- new Move({
- appear: [
- new PiPo({ x: x, y: finalSquares[castleSide][0], p: V.KING, c: c }),
- new PiPo({ x: x, y: finalSquares[castleSide][1], p: V.ROOK, c: c })
- ],
- vanish: [
- new PiPo({ x: x, y: y, p: V.KING, c: c }),
- new PiPo({ x: x, y: rookPos, p: V.ROOK, c: c })
- ],
- end:
- Math.abs(y - rookPos) <= 2
- ? { x: x, y: rookPos }
- : { x: x, y: y + 2 * (castleSide == 0 ? -1 : 1) }
- })
- );
- }
-
- return moves;
+ getCastleMoves(sq) {
+ return super.getCastleMoves(sq, "castleInCheck");
}
// TODO: allow pieces to "commit suicide"? (Currently yes except king)
positions.splice(randIndex, 1);
// Rook, jailer and king positions are now almost fixed,
- // only the ordering rook-> jailer or jailer->rook must be decided.
+ // only the ordering rook->jailer or jailer->rook must be decided.
let rookPos = positions[0];
let jailerPos = positions[2];
const kingPos = positions[1];
);
}
- // Adapted: castle with jailer possible
- getCastleMoves([x, y]) {
- const c = this.getColor(x, y);
- const firstRank = (c == "w" ? V.size.x - 1 : 0);
- if (x != firstRank || y != this.INIT_COL_KING[c])
- return [];
-
- const oppCol = V.GetOppCol(c);
- let moves = [];
- let i = 0;
- // King, then rook or jailer:
- const finalSquares = [
- [2, 3],
- [V.size.y - 2, V.size.y - 3]
- ];
- castlingCheck: for (
- let castleSide = 0;
- castleSide < 2;
- castleSide++
- ) {
- if (this.castleFlags[c][castleSide] >= 8) continue;
- // Rook (or jailer) and king are on initial position
- const finDist = finalSquares[castleSide][0] - y;
- let step = finDist / Math.max(1, Math.abs(finDist));
- i = y;
- do {
- if (
- this.isAttacked([x, i], oppCol) ||
- (this.board[x][i] != V.EMPTY &&
- (this.getColor(x, i) != c ||
- ![V.KING, V.ROOK, V.JAILER].includes(this.getPiece(x, i))))
- ) {
- continue castlingCheck;
- }
- i += step;
- } while (i != finalSquares[castleSide][0]);
- step = castleSide == 0 ? -1 : 1;
- const rookOrJailerPos = this.castleFlags[c][castleSide];
- for (i = y + step; i != rookOrJailerPos; i += step)
- if (this.board[x][i] != V.EMPTY) continue castlingCheck;
-
- // Nothing on final squares, except maybe king and castling rook or jailer?
- for (i = 0; i < 2; i++) {
- if (
- this.board[x][finalSquares[castleSide][i]] != V.EMPTY &&
- this.getPiece(x, finalSquares[castleSide][i]) != V.KING &&
- finalSquares[castleSide][i] != rookOrJailerPos
- ) {
- continue castlingCheck;
- }
- }
-
- // If this code is reached, castle is valid
- const castlingPiece = this.getPiece(firstRank, rookOrJailerPos);
- moves.push(
- new Move({
- appear: [
- new PiPo({ x: x, y: finalSquares[castleSide][0], p: V.KING, c: c }),
- new PiPo({ x: x, y: finalSquares[castleSide][1], p: castlingPiece, c: c })
- ],
- vanish: [
- new PiPo({ x: x, y: y, p: V.KING, c: c }),
- new PiPo({ x: x, y: rookOrJailerPos, p: castlingPiece, c: c })
- ],
- end:
- Math.abs(y - rookOrJailerPos) <= 2
- ? { x: x, y: rookOrJailerPos }
- : { x: x, y: y + 2 * (castleSide == 0 ? -1 : 1) }
- })
- );
- }
-
- return moves;
- }
-
atLeastOneMove() {
// If in second-half of a move, we already know that a move is possible
if (this.subTurn == 2) return true;
}
play(move) {
-// if (!this.states) this.states = [];
-// const stateFen = this.getFen();
-// this.states.push(stateFen);
-
this.prePlay(move);
move.flags = JSON.stringify(this.aggregateFlags());
this.epSquares.push(this.getEpSquare(move));
if (move.sentryPush) this.subTurn = 2;
}
this.postUndo(move);
-
-// const stateFen = this.getFen();
-// if (stateFen != this.states[this.states.length-1]) debugger;
-// this.states.pop();
}
postUndo(move) {
return { x: 10, y: 10 };
}
+ // Rook + knight:
static get MARSHALL() {
return "m";
- } //rook+knight
+ }
+
+ // Bishop + knight
static get CARDINAL() {
return "c";
- } //bishop+knight
+ }
static get PIECES() {
return ChessRules.PIECES.concat([V.MARSHALL, V.CARDINAL]);
--- /dev/null
+import { ChessRules } from "@/base_rules";
+import { ArrayFun } from "@/utils/array";
+import { randInt } from "@/utils/alea";
+
+export class PerfectRules extends ChessRules {
+ static get PawnSpecs() {
+ return Object.assign(
+ {},
+ ChessRules.PawnSpecs,
+ {
+ promotions:
+ ChessRules.PawnSpecs.promotions
+ .concat([V.AMAZON, V.EMPRESS, V.PRINCESS])
+ }
+ );
+ }
+
+ getPpath(b) {
+ return (
+ [V.AMAZON, V.EMPRESS, V.PRINCESS].includes(b[1])
+ ? "Perfect/"
+ : ""
+ ) + b;
+ }
+
+ // Queen + knight
+ static get AMAZON() {
+ return "a";
+ }
+
+ // Rook + knight
+ static get EMPRESS() {
+ return "e";
+ }
+
+ // Bishop + knight
+ static get PRINCESS() {
+ return "s";
+ }
+
+ static get PIECES() {
+ return ChessRules.PIECES.concat([V.AMAZON, V.EMPRESS, V.PRINCESS]);
+ }
+
+ getPotentialMovesFrom([x, y]) {
+ switch (this.getPiece(x, y)) {
+ case V.AMAZON:
+ return this.getPotentialAmazonMoves([x, y]);
+ case V.EMPRESS:
+ return this.getPotentialEmpressMoves([x, y]);
+ case V.PRINCESS:
+ return this.getPotentialPrincessMoves([x, y]);
+ default:
+ return super.getPotentialMovesFrom([x, y]);
+ }
+ }
+
+ getPotentialAmazonMoves(sq) {
+ return super.getPotentialQueenMoves(sq).concat(
+ this.getSlideNJumpMoves(sq, V.steps[V.KNIGHT], "oneStep")
+ );
+ }
+
+ getPotentialEmpressMoves(sq) {
+ return this.getSlideNJumpMoves(sq, V.steps[V.ROOK]).concat(
+ this.getSlideNJumpMoves(sq, V.steps[V.KNIGHT], "oneStep")
+ );
+ }
+
+ getPotentialPrincessMoves(sq) {
+ return this.getSlideNJumpMoves(sq, V.steps[V.BISHOP]).concat(
+ this.getSlideNJumpMoves(sq, V.steps[V.KNIGHT], "oneStep")
+ );
+ }
+
+ isAttacked(sq, color) {
+ return (
+ super.isAttacked(sq, color) ||
+ this.isAttackedByAmazon(sq, color) ||
+ this.isAttackedByEmpress(sq, color) ||
+ this.isAttackedByPrincess(sq, color)
+ );
+ }
+
+ isAttackedByAmazon(sq, color) {
+ return (
+ super.isAttackedByQueen(sq, color) ||
+ this.isAttackedBySlideNJump(
+ sq,
+ color,
+ V.MARSHALL,
+ V.steps[V.KNIGHT],
+ "oneStep"
+ )
+ );
+ }
+
+ isAttackedByEmpress(sq, color) {
+ return (
+ this.isAttackedBySlideNJump(sq, color, V.MARSHALL, V.steps[V.ROOK]) ||
+ this.isAttackedBySlideNJump(
+ sq,
+ color,
+ V.MARSHALL,
+ V.steps[V.KNIGHT],
+ "oneStep"
+ )
+ );
+ }
+
+ isAttackedByPrincess(sq, color) {
+ return (
+ this.isAttackedBySlideNJump(sq, color, V.CARDINAL, V.steps[V.BISHOP]) ||
+ this.isAttackedBySlideNJump(
+ sq,
+ color,
+ V.CARDINAL,
+ V.steps[V.KNIGHT],
+ "oneStep"
+ )
+ );
+ }
+
+ static get VALUES() {
+ return Object.assign(
+ { a: 12, e: 7, s: 5 }, //experimental
+ ChessRules.VALUES
+ );
+ }
+
+ static get SEARCH_DEPTH() {
+ return 2;
+ }
+
+ static GenRandInitFen(randomness) {
+ if (randomness == 0)
+ return "esqakbnr/pppppppp/8/8/8/8/PPPPPPPP/ESQAKBNR w 0 ahah -";
+
+ let pieces = { w: new Array(8), b: new Array(8) };
+ let flags = "";
+ let whiteBishopPos = -1;
+ for (let c of ["w", "b"]) {
+ if (c == 'b' && randomness == 1) {
+ pieces['b'] = pieces['w'];
+ flags += flags;
+ break;
+ }
+
+ let positions = ArrayFun.range(8);
+
+ // Get random squares for bishop: if black, pick a different color
+ // than where the white one stands.
+ let randIndex =
+ c == 'w'
+ ? randInt(8)
+ : 2 * randInt(4) + (1 - whiteBishopPos % 2);
+ if (c == 'w') whiteBishopPos = randIndex;
+ const bishopPos = positions[randIndex];
+ positions.splice(randIndex, 1);
+
+ randIndex = randInt(7);
+ const knightPos = positions[randIndex];
+ positions.splice(randIndex, 1);
+
+ randIndex = randInt(6);
+ const queenPos = positions[randIndex];
+ positions.splice(randIndex, 1);
+
+ randIndex = randInt(5);
+ const amazonPos = positions[randIndex];
+ positions.splice(randIndex, 1);
+
+ randIndex = randInt(4);
+ const princessPos = positions[randIndex];
+ positions.splice(randIndex, 1);
+
+ // Rook, empress and king positions are now almost fixed,
+ // only the ordering rook->empress or empress->rook must be decided.
+ let rookPos = positions[0];
+ let empressPos = positions[2];
+ const kingPos = positions[1];
+ flags += V.CoordToColumn(rookPos) + V.CoordToColumn(empressPos);
+ if (Math.random() < 0.5) [rookPos, empressPos] = [empressPos, rookPos];
+
+ pieces[c][rookPos] = "r";
+ pieces[c][knightPos] = "n";
+ pieces[c][bishopPos] = "b";
+ pieces[c][queenPos] = "q";
+ pieces[c][kingPos] = "k";
+ pieces[c][amazonPos] = "a";
+ pieces[c][princessPos] = "s";
+ pieces[c][empressPos] = "e";
+ }
+ // Add turn + flags + enpassant
+ return (
+ pieces["b"].join("") +
+ "/pppppppp/8/8/8/8/PPPPPPPP/" +
+ pieces["w"].join("").toUpperCase() +
+ " w 0 " + flags + " -"
+ );
+ }
+};
('Losers', 'Get strong at self-mate'),
('Magnetic', 'Laws of attraction'),
('Marseille', 'Move twice'),
+ ('Perfect', 'Powerful pieces'),
('Racingkings', 'Kings cross the 8x8 board'),
('Rifle', 'Shoot pieces'),
('Recycle', 'Reuse pieces'),
projects / vchess.git / commitdiff
