AIMA.Core.Environment.TicTacToe.TicTacToeBoard.getUnMarkedPositions C# (CSharp) Метод

	public List getUnMarkedPositions() {
		List<XYLocation> retVal = new List<XYLocation>();
		for (int i = 0; i < 3; i++) {
			for (int j = 0; j < 3; j++) {
				if (isEmpty(i, j)) {
					retVal.Add(new XYLocation(i, j));
				}
			}

		}
		return retVal;
	}