var AI = function () {
	this.makeMove = function (board, onAIMoveComplete) {
		if (typeof onAIMoveComplete === 'function') {
			onAIMoveComplete();
		}
	};
};
var Tile = Container.expand(function () {
	var self = Container.call(this);
	var tileGraphics = self.createAsset('tile', 'Game Tile', .5, .5);
	self.state = 'empty';
	self.flip = function (newState) {
		self.state = newState;
		if (self.state === 'black') {
			self.createAsset('blackTile', 'Black Tile', .5, .5);
		} else if (self.state === 'white') {
			self.createAsset('whiteTile', 'White Tile', .5, .5);
		}
	};
});
var Game = Container.expand(function () {
	var self = Container.call(this);
	function flipTiles(board, color, x, y) {
		var opponent = color === 'black' ? 'white' : 'black';
		var directions = [{
			x: -1,
			y: 0
		}, {
			x: 1,
			y: 0
		}, {
			x: 0,
			y: -1
		}, {
			x: 0,
			y: 1
		}, {
			x: -1,
			y: -1
		}, {
			x: 1,
			y: 1
		}, {
			x: -1,
			y: 1
		}, {
			x: 1,
			y: -1
		}];
		directions.forEach(function (dir) {
			var tilesToFlip = [];
			var xIter = x + dir.x;
			var yIter = y + dir.y;
			while (xIter >= 0 && xIter < 8 && yIter >= 0 && yIter < 8 && board[xIter][yIter].state === opponent) {
				tilesToFlip.push(board[xIter][yIter]);
				xIter += dir.x;
				yIter += dir.y;
			}
			if (xIter >= 0 && xIter < 8 && yIter >= 0 && yIter < 8 && board[xIter][yIter].state === color) {
				tilesToFlip.forEach(function (tile) {
					tile.flip(color);
				});
			}
		});
	}
	function isValidMove(board, color, x, y) {
		var opponent = color === 'black' ? 'white' : 'black';
		var directions = [{
			x: -1,
			y: 0
		}, {
			x: 1,
			y: 0
		}, {
			x: 0,
			y: -1
		}, {
			x: 0,
			y: 1
		}, {
			x: -1,
			y: -1
		}, {
			x: 1,
			y: 1
		}, {
			x: -1,
			y: 1
		}, {
			x: 1,
			y: -1
		}];
		for (var i = 0; i < directions.length; i++) {
			var dir = directions[i];
			var xIter = x + dir.x;
			var yIter = y + dir.y;
			var foundOpponent = false;
			while (xIter >= 0 && xIter < 8 && yIter >= 0 && yIter < 8) {
				if (board[xIter][yIter].state === opponent) {
					foundOpponent = true;
					xIter += dir.x;
					yIter += dir.y;
				} else if (board[xIter][yIter].state === color && foundOpponent) {
					return true;
				} else {
					break;
				}
			}
		}
		return false;
	}
	var board = [];
	var ai = new AI();
	var playerTurn = 'black';
	var tile = new Tile();
	var boardWidth = 8 * tile.width;
	var boardHeight = 8 * tile.height;
	var boardStartX = (2048 - boardWidth) / 2;
	var boardStartY = (2732 - boardHeight) / 2;
	for (var i = 0; i < 8; i++) {
		board[i] = [];
		for (var j = 0; j < 8; j++) {
			var tile = self.addChild(new Tile());
			tile.x = boardStartX + i * tile.width;
			tile.y = boardStartY + j * tile.height;
			board[i][j] = tile;
			tile.on('down', (function (tile, i, j) {
				return function (obj) {
					if (playerTurn === 'black' && tile.state === 'empty' && isValidMove(board, 'black', i, j)) {
						tile.flip('black');
						flipTiles(board, 'black', i, j);
						playerTurn = 'white';
						LK.setTimeout(function () {
							ai.makeMove(board, function () {
								playerTurn = 'black';
							});
						}, 0);
					}
				};
			})(tile, i, j));
		}
	}
	board[3][3].flip('white');
	board[3][4].flip('black');
	board[4][3].flip('black');
	board[4][4].flip('white');
	ai.makeMove(board);
	LK.on('tick', function () {});
});

===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,10 @@
 var AI = function () {
-	this.makeMove = function (board) {};
+	this.makeMove = function (board, onAIMoveComplete) {
+		if (typeof onAIMoveComplete === 'function') {
+			onAIMoveComplete();
+		}
+	};
 };
 var Tile = Container.expand(function () {
 	var self = Container.call(this);
 	var tileGraphics = self.createAsset('tile', 'Game Tile', .5, .5);
@@ -125,9 +129,13 @@
 					if (playerTurn === 'black' && tile.state === 'empty' && isValidMove(board, 'black', i, j)) {
 						tile.flip('black');
 						flipTiles(board, 'black', i, j);
 						playerTurn = 'white';
-						ai.makeMove(board);
+						LK.setTimeout(function () {
+							ai.makeMove(board, function () {
+								playerTurn = 'black';
+							});
+						}, 0);
 					}
 				};
 			})(tile, i, j));
 		}