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Sudoku 9×9 statistics

Sudoku is a logic puzzle and one of the most addictive pastimes.

The goal is to fill a 9×9 grid, divided into 3×3 sub-grids, with the digits 1–9 starting from the few numbers already given.

No digit may repeat within the same row, column or sub-grid.

If you want to play Sudoku for free anytime, anywhere, check out our printable Sudokus section!

Select a level that matches your skill—from easy Sudoku through medium all the way up to very hard. And if you love a challenge, try the biggest of them all, the Mega Sudoku, with a 16×16 grid.

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Why is Sudoku so addictive?

Simplicity of the rules

This makes the game welcoming to beginners. Sudoku requires no mental arithmetic, so you don’t have to be good at maths to become good at solving Sudokus. Everyone can play—children, adults and seniors.

The satisfaction of finishing a puzzle

Sudoku puzzles are compulsive, challenging and absorbing.

Rapid skill improvement

By completing just a few beginner puzzles you quickly sharpen your skills and can later tackle more complex ones.

Easy to save and resume

You can start a puzzle one day and come back to finish it on any other day.

Easy to take with you

You can cut a Sudoku out of a newspaper and work on it whenever you like.

Benefits of playing Sudoku

Exercise your mind and feel happier

It boosts memory and working logic. We use our memory to retain the numbers while applying logic to find the next empty cell.

Stimulates the brain. It helps develop a logical thought process while you solve the puzzle.

It lowers the risk of dementia and the chance of developing Alzheimer’s disease by keeping the brain active.

Teaches better time management. Playing Sudoku is fun and also increases your sense of time. At each step you take decisions and act with fewer doubts, developing your own strategy. You’ll start using these methods in everyday life, cutting unnecessary options and choosing the most viable ones.

Improves concentration. Sudoku forces players to think strategically and solve problems creatively. If you stop midway you must restart the whole reasoning chain, which helps build focus. Got a song stuck in your head? Sudoku will erase it.

Makes you feel happy and relaxed. You’ll get a wave of satisfaction and achievement when you solve a puzzle, especially the hardest ones. No matter how hectic life is, there’s nothing better after your daily tasks than sitting down with a Sudoku—after dinner or just after a stressful day at the office—alongside a cup of green tea or your favourite relaxing music.

Where can you play Sudoku for free?

Simple—on Sudoku Online https://www.sudoku-online.org