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Enjoy the puzzle game of Sudoku with the codes of Aquaria! If you have already played Aquaria, the puzzle may become a bit easier. However, even if you have never played the game of Aquaria, you can play this game without any problem. Sudoku puzzles will be added periodically. If you have never played the puzzle game of Sudoku before, please take a look at the "tutorial" before starting the game. The tutorial animation will guide you through the basic rules of Sudoku. Please enjoy the underwater puzzle solving!