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Three new puzzles every day: easy, medium and hard. They change at midnight where you are, and everyone who plays on the same date gets the same grids.

How the daily puzzles work

Each day's puzzles are built from that day's date, so they're identical on every computer and phone. Solve one and your streak goes up; skip a day and it starts again from one. Your streak lives in this browser, so it follows you only on the same device.

A good routine: easy with your morning coffee, medium at lunch, hard when you've got twenty quiet minutes. If hard feels like a wall, our sudoku strategies page explains the pair moves it needs.

Want more than three a day? The random medium puzzles never run out, and there's an expert level that isn't in the daily set.

More sudoku

• Easy sudokuPlenty of clues. Every move can be found by looking for single options.
• Medium sudokuFewer clues, same simple logic. A good daily level.
• Hard sudokuNeeds pairs and pointing pairs, not just singles.
• Expert sudokuNeeds X-wings or triples. Still no guessing.
• Printable sudokuLarge-print sheets for pencil and paper, with answers.
• How to play sudokuThe rules, a first walk-through and the controls on this site.
• Sudoku strategiesFrom hidden singles to X-wings, with examples.