+import { ChessRules } from "@/base_rules";
+
+export class QueenpawnsRules extends ChessRules {
+ static get PawnSpecs() {
+ return Object.assign(
+ {},
+ ChessRules.PawnSpecs,
+ // The promotion piece doesn't matter, the game is won
+ { promotions: [V.QUEEN] }
+ );
+ }
+
+ static get HasFlags() {
+ return false;
+ }
+
+ scanKings() {}
+
+ static GenRandInitFen() {
+ return "3q4/8/8/8/8/8/PPPPPPPP/8 w 0 -";
+ }
+
+ filterValid(moves) {
+ return moves;
+ }
+
+ getCheckSquares() {
+ return [];
+ }
+
+ getCurrentScore() {
+ // If all pieces of some color vanished, the opponent wins:
+ for (let c of ['w', 'b']) {
+ if (this.board.every(b => b.every(cell => !cell || cell[0] != c)))
+ return (c == 'w' ? "0-1" : "1-0");
+ }
+ // Did a white pawn promote? Can the queen (in turn) take it?
+ const qIdx = this.board[0].findIndex(cell => cell == "wq");
+ if (
+ qIdx >= 0 &&
+ (this.turn == 'w' || !super.isAttackedByQueen([0, qIdx], 'b'))
+ ) {
+ return "1-0";
+ }
+ if (!this.atLeastOneMove()) return "1/2";
+ return "*";
+ }
+
+ postPlay() {}
+ postUndo() {}
+
+ static get SEARCH_DEPTH() {
+ return 4;
+ }
+};
projects / vchess.git / commitdiff