X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=public%2Fjavascripts%2Fvariants%2FMagnetic.js;fp=public%2Fjavascripts%2Fvariants%2FMagnetic.js;h=e126f1cee175f9aafe0691cb70a34802a8a175d6;hb=9e42b4dd8a70b9593cc44ab181b4df32032ca250;hp=d1436c0f3ea4cb66623970d982423d004959bfa1;hpb=e2b216fecd1676fb97c28d5d3c46612c78e04e64;p=vchess.git

diff --git a/public/javascripts/variants/Magnetic.js b/public/javascripts/variants/Magnetic.js
index d1436c0f..e126f1ce 100644
--- a/public/javascripts/variants/Magnetic.js
+++ b/public/javascripts/variants/Magnetic.js
@@ -212,4 +212,23 @@ class MagneticRules extends ChessRules
 		// No valid move: our king disappeared
 		return this.turn == "w" ? "0-1" : "1-0";
 	}
+
+	static get THRESHOLD_MATE() {
+		return 500; //checkmates evals may be slightly below 1000
+	}
+
+	getComputerMove()
+	{
+		let moves1 = this.getAllValidMoves();
+		// Can I mate in 1 ?
+		for (let i of _.shuffle(_.range(moves1.length)))
+		{
+			this.play(moves1[i]);
+			const finish = (Math.abs(this.evalPosition()) >= VariantRules.THRESHOLD_MATE);
+			this.undo(moves1[i]);
+			if (finish)
+				return moves1[i];
+		}
+		return super.getComputerMove(moves1);
+	}
 }