Suguru ("Number Blocks") is a logic puzzle invented by Naoki Inaba (Japan) that has simple rules, but which provides sufficient challenges to satisfy the most enthusiastic solvers .
Even though the rules are simple, you will need all your skills to solv.
Cells with the same digits must not be orthogonally or diagonally adjacent.
Each region must be filled with each of the digits from 1 to the number of cells in the region.
The task consists of a rectangular or square grid divided into regions.
Suguru ("Number Blocks") is a logic puzzle invented by Naoki Inaba (Japan) that has simple rules, but which provides sufficient challenges to satisfy the most enthusiastic solvers