public boolean isEmptySpace () {
		int i = 0, j = 0;
		for (i = 0; i < 9; i++) {
			for (j = 0; j < 9; j++) {
				if (entries[i][j].getText().equals("")) {
					System.out.println("isEmptySpace() returned false at i: " + i + " j: "+j); 
					return false;
				}
			}
		}
		return true;
	}