THE SUDOKU

Sudoku is a Sudoku app from beginner to advanced can enjoy. ★ five difficulty ★ There are five stages to the current level. Level 1 offers a lot of challenges about to take one hour on average to solve Problem 1 is level 5 is recommended for the person who started the Sudoku recently. ★rules★ Rules And add any number from 1 to 9 mass vacant. And each column of vertical and horizontal, the same number must not be entered in more than one block of 3 × 3 which is surrounded by a thick line. Has the effect of outstanding brain training puzzle in pencil just a simple rule that says! I am going to continue to add the problem in the future.