private void checkMove6 () {
	if (row != 0 && col != 7 && Othello.board[row-1][col+1] == null) {
	    for (int i=row, j=col; i<8 && j>=0; i++, j--) {
		if (Othello.board[i][j]==player) {
		    list[6] = new Possible(row-1, col+1, i, j); break;
		}
		else if (Othello.board[i][j] == null) break;
	    }
	}
    }