Samurai Sudoku

Are you an avid gamer of the famous mind game “Sudoku". Then try this supercool Sudoku app. It has 4 different difficulty levels with several games in each level. You can make notes while solving sudoku that helps you plan a strategy. The game also provide you with the option of changing theme. Want to start over, yes the game has a reset option as well. Try it. Any suggestion is welcomed.