Does Sudoku improve brain function?

Research suggests Sudoku engages working memory, logical reasoning, and concentration. Regular play is associated with better performance on executive function tasks, though it does not transfer broadly to unrelated cognitive skills.

Are MindPlay Sudoku puzzles unique every time?

Yes. Each game generates a fresh, unique puzzle with a single valid solution.

Is MindPlay Sudoku free?

Yes, completely free with no account needed.

What difficulty levels are available?

Easy, Medium, and Hard. Hard puzzles require advanced techniques like X-Wing and pointing pairs.

Sudoku · MindPlay

Time 0:00Mistakes 0

How to play

1. Fill every row, column, and 3×3 box with digits 1–9.

2. Each digit appears exactly once per row, column, and box.

3. Bold cells are fixed clues — they can't be changed.

4. Red digits mean a conflict in that row, column, or box.

easy

46 clues

medium

36 clues

hard

28 clues

All-time stats

easy

0 winsbest —

medium

0 winsbest —

hard

0 winsbest —