Sudoku Mastermind: classic sudoku with daily puzzles

What Sudoku Mastermind is

Sudoku Mastermind is a classic sudoku game for Android. Fill the grid so that every row, every column and every box holds each digit exactly once – no arithmetic, just logic. The app gives you a large library of puzzles, so there is always a fresh grid waiting, whether you have two minutes or an hour.

How sudoku works

A classic sudoku grid is 9×9, divided into nine 3×3 boxes, and some of the digits are already in place. The rest are worked out by logic: look at which digits a row, a column and a box already contain, and rule out the candidates that cannot fit. That is exactly where pencil notes help.

Five difficulty levels

Choose from Easy, Medium, Hard, Expert and Epic. Beginners can learn the basic techniques on easy grids and step up when they feel ready, while experienced solvers can go straight to the puzzles that need careful deduction. Moving up through the levels is a simple way to see your own progress.

Tools that feel like pen and paper

• Pencil notes – jot down candidate numbers in a cell, just as you would on paper.
• Smart hints – get a nudge when you are stuck without having the whole solution given away.
• Real-time error checking – see a mistake straight away instead of discovering it at the end.
• A clean interface – a clear grid and simple controls that keep the focus on the puzzle.

Daily puzzles and achievements

A daily challenge gives you a new reason to open the app each day, and achievements mark the milestones you reach along the way. If you like a short logic workout with your morning coffee, the daily sudoku is a good habit to build.

Who it is for

Sudoku Mastermind is for anyone who enjoys number puzzles: newcomers who want a friendly start with hints and notes, and seasoned players looking for Expert and Epic grids. It plays offline, so you can solve on a plane or in the underground without a connection. The game is free to download and contains ads.

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