Sudoku Samurai Puzzle description

Great game to train your brain and for a good time spending!
Three difficulty levels and more than 300! fascinating puzzles!
Easy controls and pretty design, try it and enjoy the game!

Sudoku Puzzle Rules
Solving a sudoku puzzle can be rather tricky, but the rules of the game are quite simple.
A sudoku puzzle is a grid of nine by nine squares or cells, that has been subdivided into nine subgrids or "regions" of three by three cells.
The objective of sudoku is to enter a digit from 1 through 9 in each cell, in such a way that:
Each horizontal row (shown in pink) contains each digit exactly once
Each vertical column (shown in yellow) contains each digit exactly once
Each subgrid or region (shown in green) contains each digit exactly once
This explains the name of the game; in Japanese, sudoku means something like "numbers singly".
Solving a sudoku puzzle does not require knowledge of mathematics; simple logic suffices. (Instead of digits, other symbols can be used, e.g. letters, as long as there are nine different symbols.)
In each sudoku puzzle, several digits have already been entered (the "givens"); these may not be changed.
The puzzler's job is to fill the remainder of the grid with digits - respecting, of course, the three constraints mentioned earlier.
A "good" sudoku puzzle has only one solution

tag: Sudoku, Puzzle game, Samurai game