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static get LoseOnRepetition() {
return false;
}
+ // And in some others (Iceage), repetitions should be ignored:
+ static get IgnoreRepetition() {
+ return false;
+ }
// At some stages, some games could wait clicks only:
onlyClick() {
"Friendly pieces": "Friendly pieces",
"Fusion pieces (v1)": "Fusion pieces (v1)",
"Fusion pieces (v2)": "Fusion pieces (v2)",
- "In the shadow": "In the shadow",
- "Interweaved colorbound teams": "Interweaved colorbound teams",
"General's Chess": "General's Chess",
"Geometric Chess": "Geometric Chess",
"Get strong at self-mate": "Get strong at self-mate",
"Give three checks": "Give three checks",
"Harassed kings": "Harassed kings",
"Hawaiian Checkers": "Hawaiian Checkers",
+ "Ice Age is coming!": "Ice Age is coming!",
+ "In the shadow": "In the shadow",
+ "Interweaved colorbound teams": "Interweaved colorbound teams",
"Japanese Chess": "Japanese Chess",
"Jump the borders": "Jump the borders",
"Keep antiking in check (v1)": "Keep antiking in check (v1)",
"Friendly pieces": "Piezas amistosas",
"Fusion pieces (v1)": "Fusionar piezas (v1)",
"Fusion pieces (v2)": "Fusionar piezas (v2)",
- "In the shadow": "En la sombra",
- "Interweaved colorbound teams": "Equipos unicolores entrelazados",
"General's Chess": "Ajedrez de los Generales",
"Geometric Chess": "Ajedrez geométrico",
"Get strong at self-mate": "Progreso en mates asistidos",
"Give three checks": "Dar tres jaques",
"Harassed kings": "Reyes acosados",
"Hawaiian Checkers": "Damas hawaianas",
+ "Ice Age is coming!": "¡Se acerca la Edad de Hielo!",
+ "In the shadow": "En la sombra",
+ "Interweaved colorbound teams": "Equipos unicolores entrelazados",
"Japanese Chess": "Ajedrez japonés",
"Jump the borders": "Saltar las fronteras",
"Keep antiking in check (v1)": "Mantener el antirey en jaque (v1)",
"Friendly pieces": "Pièces amies",
"Fusion pieces (v1)": "Fusionner les pièces (v1)",
"Fusion pieces (v2)": "Fusionner les pièces (v2)",
- "In the shadow": "Dans l'ombre",
- "Interweaved colorbound teams": "Équipes unicolores entremêlées",
"General's Chess": "Échecs des Généraux",
"Geometric Chess": "Échecs géométriques",
"Get strong at self-mate": "Progressez en mats aidés",
"Give three checks": "Donnez trois échecs",
"Harassed kings": "Rois harcelés",
"Hawaiian Checkers": "Dames hawaïennes",
+ "Ice Age is coming!": "L'Âge de Glace arrive !",
+ "In the shadow": "Dans l'ombre",
+ "Interweaved colorbound teams": "Équipes unicolores entremêlées",
"Japanese Chess": "Échecs japonais",
"Jump the borders": "Sauter les frontières",
"Keep antiking in check (v1)": "Gardez l'antiroi en échec (v1)",
--- /dev/null
+p.boxed
+ | Every 20 moves, most empty squares freeze and isolated pieces vanish.
+
+p
+ | Ice Age is a
+ a(href="https://www.chessvariants.com/boardrules.dir/iceage.html")
+ | chess variant
+ | invented by Köksal Karakus in 2000.
+ | It can also be played on
+ a(href="https://brainking.com/en/GameRules?tp=100") brainking.com
+ | .
+
+figure.diagram-container
+ .diagram
+ | fen:rnbqkbnr/pppppppp/cccccccc/cccccccc/cccccccc/cccccccc/PPPPPPPP/RNBQKBNR:
+ figcaption Deterministic initial position
+
+p.
+ If the board is filled with ice cubes, you can only move by capturing them.
+ Ice cubes behave as normal pieces, which cannot move.
+
+p.
+ Just after the 20th black move (and before the 21st white one),
+ "ice age is coming":
+ul
+ li all empty squares freeze, except those orthogonally surrounded by pieces.
+ li all pieces which are not adjacent to any other piece (black or white) vanish.
+p.
+ If only one king remains, the other side loses.
+ But if both disappeared, then the result is a draw.
+
+figure.diagram-container
+ .diagram.diag12
+ | fen:2rq1rk1/3bpp2/1c1p1bP1/1p2n3/4P2P/1NN2P1c/PPPQ4/1K1R3R:
+ .diagram.diag22
+ | fen:cccq1rkc/cccbppcc/cccp1bPc/ccccnccc/ccccPccc/cNrccPcc/PPPQcccc/1K1Rcccc:
+ figcaption Before and after 20...Rxc3
+
+p.
+ Then, every 20 moves ice age comes again: after move 40, 60, and so on.
+ This condition excepted, the game follows FIDE chess rules, without draws
+ on repetition: indeed, as the author notices, sometimes a win is possible
+ by "waiting until the enemy king freezes".
--- /dev/null
+p.boxed
+ | Cada 20 movimientos, la mayoría de las casillas vacías se congelan
+ | y las piezas aisladas desaparecen.
+
+p
+ | Ice Age es
+ a(href="https://www.chessvariants.com/boardrules.dir/iceage.html")
+ | una variante
+ | inventado por Köksal Karakus en 2000.
+ | También puedes jugarlo en
+ a(href="https://brainking.com/en/GameRules?tp=100") brainking.com
+ | .
+
+figure.diagram-container
+ .diagram
+ | fen:rnbqkbnr/pppppppp/cccccccc/cccccccc/cccccccc/cccccccc/PPPPPPPP/RNBQKBNR:
+ figcaption Posición inicial determinista
+
+p.
+ Si el tablero está lleno de bloques de hielo, solo puedes mover
+ capturarlos. Se comportan como piezas estacionarias normales.
+
+p.
+ Inmediatamente después del 20mo movimiento negro (y antes del 20mo
+ movimiento blanco), "la edad de hielo se acerca":
+ul
+ li.
+ todas las casillas vacías se congelan,
+ excepto aquellas rodeadas ortogonalmente por piezas.
+ li.
+ todas las piezas que no están adyacentes a otra habitación
+ (amigo o enemigo) desaparece.
+p.
+ Si solo queda un rey, el otro lado pierde.
+ Pero si ambos se van, entonces el juego es un empate.
+
+figure.diagram-container
+ .diagram.diag12
+ | fen:2rq1rk1/3bpp2/1c1p1bP1/1p2n3/4P2P/1NN2P1c/PPPQ4/1K1R3R:
+ .diagram.diag22
+ | fen:cccq1rkc/cccbppcc/cccp1bPc/ccccnccc/ccccPccc/cNrccPcc/PPPQcccc/1K1Rcccc:
+ figcaption Antes y después de 20...Rxc3
+
+p.
+ Luego, cada 20 jugadas regresa la edad de hielo: después del 40, 60,
+ etc. Salvo esta condición, el juego sigue las reglas de ajedrez de la FIDE,
+ sin los empates por repetición: de hecho, como señala el autor,
+ a veces puedes ganar "esperando que el rey contrario se congele".
--- /dev/null
+p.boxed
+ | Tous les 20 coups, la plupart des cases vides gèlent
+ | et les pièces isolées disparaissent.
+
+p
+ | Ice Age est
+ a(href="https://www.chessvariants.com/boardrules.dir/iceage.html")
+ | une variante
+ | inventée par Köksal Karakus en 2000.
+ | On peut aussi y jouer sur
+ a(href="https://brainking.com/en/GameRules?tp=100") brainking.com
+ | .
+
+figure.diagram-container
+ .diagram
+ | fen:rnbqkbnr/pppppppp/cccccccc/cccccccc/cccccccc/cccccccc/PPPPPPPP/RNBQKBNR:
+ figcaption Position initiale déterministe
+
+p.
+ Si l'échiquier est rempli de blocs de glace, vous ne pouvez bougez qu'en
+ les capturant. Ceux-ci se comportent comme des pièces normales, immobiles.
+
+p.
+ Immédiatement après le 20eme coup noir (et avant le 21 coup blanc),
+ "l'âge de glace arrive" :
+ul
+ li.
+ toutes les cases vides gèlent,
+ sauf celles orthogonalement entourées de pièces.
+ li.
+ toutes les pièces qui ne sont pas adjacentes à une autre pièce
+ (amie ou ennemie) disparaissent.
+p.
+ Si un seul roi subsiste, l'autre camp perd.
+ Mais si les deux ont disparu, alors la partie est nulle.
+
+figure.diagram-container
+ .diagram.diag12
+ | fen:2rq1rk1/3bpp2/1c1p1bP1/1p2n3/4P2P/1NN2P1c/PPPQ4/1K1R3R:
+ .diagram.diag22
+ | fen:cccq1rkc/cccbppcc/cccp1bPc/ccccnccc/ccccPccc/cNrccPcc/PPPQcccc/1K1Rcccc:
+ figcaption Avant et après 20...Rxc3
+
+p.
+ Ensuite, tous les 20 coups l'âge de glace revient : après le 40eme, 60eme,
+ etc. Cette condition exceptée, la partie suit les règles FIDE des échecs,
+ sans les nulles par répétition : en effet, comme l'auteur le fait remarquer,
+ on peut parfois gagner en "attendant que le roi adverse gèle".
"Fusion",
"Gridolina",
"Hamilton",
+ "Iceage",
"Kingsmaker",
"Magnetic",
"Refusal",
"Fusion",
"Gridolina",
"Hamilton",
+ "Iceage",
"Kingsmaker",
"Magnetic",
"Refusal",
"Fusion",
"Gridolina",
"Hamilton",
+ "Iceage",
"Kingsmaker",
"Magnetic",
"Refusal",
--- /dev/null
+import { ChessRules } from "@/base_rules";
+
+export class IceageRules extends ChessRules {
+
+ static get IgnoreRepetition() {
+ return true;
+ }
+
+ static get ICECUBE() {
+ return "cc";
+ }
+
+ static board2fen(b) {
+ if (b[0] == 'c') return 'c';
+ return ChessRules.board2fen(b);
+ }
+
+ static fen2board(f) {
+ if (f == 'c') return V.ICECUBE;
+ return ChessRules.fen2board(f);
+ }
+
+ getPpath(b) {
+ if (b[0] == 'c') return "Iceage/icecube";
+ return b;
+ }
+
+ static IsGoodPosition(position) {
+ if (position.length == 0) return false;
+ const rows = position.split("/");
+ if (rows.length != V.size.x) return false;
+ let kings = { "k": 0, "K": 0 };
+ for (let row of rows) {
+ let sumElts = 0;
+ for (let i = 0; i < row.length; i++) {
+ if (['K','k'].includes(row[i])) kings[row[i]]++;
+ if (['c'].concat(V.PIECES).includes(row[i].toLowerCase())) sumElts++;
+ else {
+ const num = parseInt(row[i], 10);
+ if (isNaN(num)) return false;
+ sumElts += num;
+ }
+ }
+ if (sumElts != V.size.y) return false;
+ }
+ if (Object.values(kings).some(v => v != 1)) return false;
+ return true;
+ }
+
+ static GenRandInitFen(randomness) {
+ return ChessRules.GenRandInitFen(randomness).replace(/8/g, "cccccccc");
+ }
+
+ play(move) {
+ const iceAgeAfterMove = (this.movesCount % 40 == 39);
+ if (iceAgeAfterMove)
+ // Next ice age after this move:
+ move.state = JSON.stringify(this.board);
+ super.play(move);
+ if (iceAgeAfterMove) {
+ for (let i=0; i<8; i++) {
+ for (let j=0; j<8; j++) {
+ if (this.board[i][j] == V.EMPTY) {
+ const surrounded = V.steps[V.ROOK].every(s => {
+ const [ii, jj] = [i + s[0], j + s[1]];
+ return (
+ !V.OnBoard(ii, jj) ||
+ ![V.EMPTY, V.ICECUBE].includes(this.board[ii][jj])
+ );
+ });
+ if (!surrounded) this.board[i][j] = V.ICECUBE;
+ }
+ else if (this.board[i][j] != V.ICECUBE) {
+ const steps = V.steps[V.ROOK].concat(V.steps[V.BISHOP]);
+ const connected = steps.some(s => {
+ const [ii, jj] = [i + s[0], j + s[1]];
+ return (
+ V.OnBoard(ii, jj) &&
+ ![V.EMPTY, V.ICECUBE].includes(this.board[ii][jj])
+ );
+ });
+ if (!connected) this.board[i][j] = V.ICECUBE;
+ }
+ }
+ }
+ // Update king position (no need to update flags: game over)
+ const kp = this.kingPos;
+ if (this.getPiece(kp['w'][0], kp['w'][1]) != V.KING)
+ this.kingPos['w'] = [-1, -1];
+ if (this.getPiece(kp['b'][0], kp['b'][1]) != V.KING)
+ this.kingPos['b'] = [-1, -1];
+ }
+ }
+
+ undo(move) {
+ super.undo(move);
+ if (!!move.state) {
+ this.board = JSON.parse(move.state);
+ if (this.kingPos['w'][0] < 0 || this.kingPos['b'][0] < 0) {
+ for (let i=0; i<8; i++) {
+ for (let j=0; j<8; j++) {
+ if (this.board[i][j] != V.EMPTY && this.getPiece(i, j) == V.KING)
+ this.kingPos[this.getColor(i, j)] = [i, j];
+ }
+ }
+ }
+ }
+ }
+
+ getCheckSquares() {
+ if (this.kingPos[this.turn][0] < 0) return [];
+ return super.getCheckSquares();
+ }
+
+ getCurrentScore() {
+ const kingDisappear = {
+ w: this.kingPos['w'][0] < 0,
+ b: this.kingPos['b'][0] < 0
+ };
+ if (kingDisappear['w'] && kingDisappear['b']) return "1/2";
+ if (kingDisappear['w']) return "0-1";
+ if (kingDisappear['b']) return "1-0";
+ return super.getCurrentScore();
+ }
+
+ static get SEARCH_DEPTH() {
+ return 2;
+ }
+
+ evalPosition() {
+ let evaluation = 0;
+ for (let i = 0; i < V.size.x; i++) {
+ for (let j = 0; j < V.size.y; j++) {
+ if (![V.EMPTY,V.ICECUBE].includes(this.board[i][j])) {
+ const sign = this.getColor(i, j) == "w" ? 1 : -1;
+ evaluation += sign * V.VALUES[this.getPiece(i, j)];
+ }
+ }
+ }
+ return evaluation;
+ }
+
+};
// In corr games, just reset clock to mainTime:
this.game.clocks[colorIdx] = extractTime(this.game.cadence).mainTime;
}
- // If repetition detected, consider that a draw offer was received:
- const fenObj = this.vr.getFenForRepeat();
- this.repeat[fenObj] =
- !!this.repeat[fenObj]
- ? this.repeat[fenObj] + 1
- : 1;
- if (this.repeat[fenObj] >= 3) {
- if (V.LoseOnRepetition)
- this.gameOver(moveCol == "w" ? "0-1" : "1-0", "Repetition");
- else this.drawOffer = "threerep";
+ if (!V.IgnoreRepetition) {
+ // If repetition detected, consider that a draw offer was received:
+ const fenObj = this.vr.getFenForRepeat();
+ this.repeat[fenObj] =
+ !!this.repeat[fenObj]
+ ? this.repeat[fenObj] + 1
+ : 1;
+ if (this.repeat[fenObj] >= 3) {
+ if (V.LoseOnRepetition)
+ this.gameOver(moveCol == "w" ? "0-1" : "1-0", "Repetition");
+ else this.drawOffer = "threerep";
+ }
+ else if (this.drawOffer == "threerep") this.drawOffer = "";
}
- else if (this.drawOffer == "threerep") this.drawOffer = "";
if (!!this.game.mycolor && !data.receiveMyMove) {
// NOTE: 'var' to see that variable outside this block
var filtered_move = getFilteredMove(move);
('Hoppelpoppel', 'Knibis and Bisknis'),
('Horde', 'A pawns cloud'),
('Hypnotic', 'Mind control (v1)'),
+ ('Iceage', 'Ice Age is coming!'),
('Interweave', 'Interweaved colorbound teams'),
('Isardam', 'No paralyzed pieces'),
('Janggi', 'Korean Chess'),
projects / vchess.git / commitdiff
