Suguru (Number Blocks): 500 Hard Puzzles (10x10)

is a logic puzzle with simple rules and challenging solutions. The task consists of a rectangular or square grid divided into regions. The rules of Suguru are simple, each region must be filled with each of the digits from 1 to the number of cells in the region. Cells with the same digits must not be orthogonality or diagonally adjacent. - 500 Hard Suguru (10x10) Puzzles. - Answers to every puzzle are provided. - Each puzzle is guaranteed to have only one solution.