Sudoku - Free Puzzles

Sudoku is an addictive puzzle game that includes a series of puzzles with different difficulty levels, suited for beginners and experts. This app is designed as Zen mode with a clean and simple UI style, which dramatically relax yourself during the game. It supports classic sudoku mode and killer sudoku mode. You can select any mode and any difficulty level according to your favorites. No need to pass levels one by one.

In classic sudoku mode, your goal is to fill a 9 by 9 square with numbers, so that each column and each line must have unique numbers. Each 3 by 3 square should have unique numbers as well. In killer sudoku mode, it provides additional hints which are the sum of each region surrounded by dotted lines. Each level has one unique solution.

Key Features:

Zen theme: It is designed with a clean Zen theme UI.
Various difficulty levels: It supports Easy/Medium/Hard/Expert difficulty levels.
Classic/Killer mode: It supports both classic and killer mode. You can select any favorite level.
Play hints: By clicking 'mark' button, you can switch into mark mode, which allows you to add marks in the question blocks. You can also click 'erase' button to clean all the marks in one block.
Win rules: Each game allows three mistakes.
Auto save: Pause or exit the game without losing any progress. You can select 'continue' to resume the game.