@Override
    public List<Coordinate> candidateMoves() {
        List<Coordinate> candidates = new ArrayList<Coordinate>();

        for (int row = 0; row < super.board.rows(); row++)
        {
            if (row == super.board.row()) continue;
            int col1 = super.column() - (super.row() - row);
            int col2 = super.column() + (super.row() - row);
            if (col1 >= 0 && col1 < super.board.cols())
            {
                candidates.add(new Coordinate(row, col1));
            }
            if (col2 >= 0 && col2 < super.board.cols())
            {
                candidates.add(new Coordinate(row, col2));
            }
        }

        return candidates;
    }