[expl]

public var board:Array = new Array();
 
private function genBoard():void {
	for (var i:int = 0; i < 16; i++) {
                board[i] = new Array();
		for (var j:int = 0; j < 16; j++) {
			board[i][j] = Math.floor(Math.random() * 3 + 1);
		}
	}
}