+
+ getEnpassantCaptures([x, y], shiftX) {
+ let moves = [];
+ const Lep = this.epSquares.length;
+ const epSquare = this.epSquares[Lep - 1]; //always at least one element
+ if (
+ !!epSquare &&
+ epSquare.x == x + shiftX &&
+ Math.abs(epSquare.y - y) == 1
+ ) {
+ let enpassantMove = new Move({
+ appear: [],
+ vanish: [],
+ start: {x:x, y:y},
+ end: {x:x+shiftX, y:epSquare.y}
+ });
+ enpassantMove.vanish.push({
+ x: x,
+ y: epSquare.y,
+ p: "p",
+ c: this.getColor(x, epSquare.y)
+ });
+ moves.push(enpassantMove);
+ }
+ return moves;
+ }
+
+ static get SEARCH_DEPTH() {
+ return 2;
+ }