Enum Check

java/Chapter 17/Question17_2/QuestionB.java:9–14

	enum Piece { Empty, Red, Blue };
	
	public enum Check {
		Row,
		Column,
		Diagonal,
		ReverseDiagonal
	}
	
	public static Piece getIthColor(Piece[][] board, int index, int var, Check check) {
		int N = board.length;