CrossLogic is a sort of Japanese logic puzzle. Each number represents the length of the adjacent blocks which are filled in on its row or column and there must be at least one empty block between them. If you see '2 4 3', this means that there are three groups of filled blocks. The first group contains two filled blocks, the second four and the third three. The groups are separated by at least one empty block. The important thing is to determine how many empty blocks are placed between the filled groups.