Let's learn Japanese kanji! Learn and practice Japanese number kanji at your own pace. With over 50 levels and 4 game modes, you'll learn Japanese number kanji while enjoying a real Sudoku challenge. Play Sudoku your way: 4x4, 6x6, 9x9 and Samurai Sudoku all await you! As you play, you'll become adept at reading and differentiating between Japanese kanji. It's a perfect jumping-off point for learning more difficult Japanese kanji. Are you ready? Let's play Sudoku with kanji!