@SuppressWarnings({"RedundantIfStatement"})
    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        Cell cell = (Cell) o;

        if (column != cell.column) return false;
        if (row != cell.row) return false;

        return true;
    }