Column Hints

Column Hints show two figures on the same column. Once you know the column in which one of them is, you can be certain that the other one is on the same column.
Likewise, if you know that a column does not contain one of the figures, the other one won´t be there either.
Between Hints

Between Hints show three figures. These figures must be together on the puzzle, although the figures on the side can be on either side of the figure on the center.
These hints tell you, for example, that the center figure will never be on the first or last column.
On the hint shown, the yellow triangle and the red circle are on either side of the blue X. Therefore, they will never be on the same column.
Near Hints

Near Hints show two figures separated by an arrow. It means that those two figures are on two columns side by side (figures can be on either side).
Once you know that a column contains one of the figures, the other one must be on one of the columns at its side.
In the hint above, the blue X and the red diamond are on adjacent columns.