Sudoku guides

Everything you need to go from your first grid to an evil one. Start with the rules and the two first moves, then work up through the techniques one level at a time. Every worked example is a real move from a puzzle you can play here.

Read the guides

🧭 How to play SudokuThe rules, the two first moves, and your first real technique.
🧠 Sudoku strategiesLocked candidates, naked and hidden pairs, the X-Wing and the XY-Wing.
🔬 Is Sudoku good for your brain?What the big studies found about puzzles, thinking and dementia risk.

Then practise

Each level adds one technique, so you can learn one thing at a time.