Sumdoku

New rules, new challenge!

SUmDOKU free puzzle is a unique twist of sudoku number game to train your brain. Solve daily SUmDOKU and have fun! Thousands of number games to explore. Install this puzzle game to start now!

Another unique puzzle game for sudoku lovers, for beginners and advanced players. Whether you'd like to relax or keep your mind active – pass the time in a pleasant way with number puzzle game! Get a small stimulating break or clear your head! Take your favorite number game with you wherever you go. Playing this free SUmDOKU puzzle on mobile is as good as using a real pencil and paper.

This number puzzle game comes in six difficulty levels: beginner, easy, medium, hard, expert, and extreme! Play easy puzzles to exercise your brain, logical thinking, and memory, or try medium and hard puzzles to give your mind a real workout.

Our free puzzle games have some features that make this number puzzle easier for you: auto-check, and highlight errors. You will find all you need whether you are solving your first sudoku puzzle, or you've progressed to expert difficulty. Choose any level you like!

If you are an excellent sudoku solver, welcome to our unique sudoku twist! Here you can spend your free time keeping your mind sharp with classic number brain teasers. Regular game practice will help you become a real number puzzle master who quickly deals even with the most difficult sudoku puzzles in a short time.

Challenge your brain with the SUmDOKU anywhere, anytime!

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Recent changes:
difficulty redesigned.