Mixed Sudoku to print (free PDF)
Download a free mixed Sudoku book in PDF — a bit of everything, from very easy to evil plus the magic and Sudoku X variants, ramping up as you go. Ready for A4 or US Letter.
Sudoku book (PDF)
Download the free sudoku book in PDF: 20, 60 or 120 puzzles, with the solutions in a separate PDF. Ready to print on A4 or US Letter.
Sample puzzles
Why these puzzles?
A mixed book is the most fun way to practise: it warms you up with very easy grids, ramps to evil and then throws in the magic and Sudoku X variants, so you build momentum instead of facing a wall of identical puzzles. Every grid is labelled with its difficulty, so you always know what you're up against.
How to print
Pick how many puzzles and the paper size, then press "Generate PDF". Six puzzles per page by default; the puzzles climb from very easy to evil, and the answers come in a separate solutions PDF.
Solving tips
Start at the front while you warm up, then push into the harder pages. If a grid stalls you, skip ahead and come back — a fresh easier puzzle often resets your eye.