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Sudoku

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About Sudoku

Sudoku is a digital Sudoku game with millions of grids across four difficulty settings: easy, medium, hard and expert. You can work through puzzles suited to beginners or take on expert challenges, using assistance or solving them unaided.

Solve puzzles

Auto-tracking, automated controls and duplicate highlights are available to help you, while manual mode lets you spot mistakes yourself. You can also use hints, which come with a time penalty, take notes on possible solutions and undo moves. The game includes 4x4 Mini Sudoku for beginners.

Puzzles and progress

You can share puzzles with friends, compare your standing on global leaderboards and earn achievements. Save and load features let you continue where you left off.

Frequently asked questions

Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.

Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.

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