A Sudoku with a samurai theme and 3 levels of difficulty.
This is Samurai Sudoku, the game for the ancient worrier in all of us. This is a challenging game, with many levels. You have a limited amount of mistakes you can make before you are defeated. Be careful before you place your number, if it is wrong the square will turn red and you will instantly know you have made an error. Make too many and the game is over.