Sudoku1 - Varient Twins Relation

Varient: Twins Relation

In this variant, you have to solve 2 grids simultaneously, 2 grids with common cells hatched (with the same value).

By resolving a hatched cell, you can set the value in the second grid, which will allow you to move forward.
By pushing button

of the toolbar, possible values are filtered using combinations available, if only one possible solution. In the resolution methode, select the method "Variant" to take into account these combinations.

Here is an example of grid:
The 2 in the first grid may be carried forward in the second.