public boolean updateEmptySpace () {
		int i = 0, j = 0;
        /* Checks the size */
		if (size.equals("9x9")){
            /* Uses nested for loops to check if a space is empty */
			for (i = 0; i < 9; i++) {
				for (j = 0; j < 9; j++) {
					if (entries[i][j].getText().equals("")) {
						entries[i][j].setText(solution[i][j]);
					}
				}
			}
		} else { /* Same as above for 16x16 board */
			for (i = 0; i < 16; i++) {
				for (j = 0; j < 16; j++){
					if (entries[i][j].getText().equals("")) {
						entries[i][j].setText(solution[i][j]);
					}
				}
			}
		}
		return false;
	}