This is a crossword puzzle game with a difference!

In ordinary crossword puzzle you need to guess the words and place them horizontally or
vertically to appropriate cells within the game field. Of course, each pair of crossing
horizontal and vertical words must have the same letter in the cell of intersection.

Unlike the crossword puzzle, the game uses numbers in place of words. More then that, all
numbers, that need to be placed on the game field, are known in advance. However, you
don't know the cells within the game field, to which each number should be placed. As in
crossword, you can place numbers both horizontally and vertically, and each crossing pair
of numbers must have the same digit in the cell of their intersection.