Over 49,000 sudoku boards for your solving pleasure. Free! Fun!
This collection is based on the superb work of Gordon Royle and The University of Western Australia (neither affiliated with Yoyu LLC).
These challenging puzzles have one thing in common. Only 17 clues! However, you can adjust the difficult to suit your liking.
You know the drill: each row, each, column and each box may only contain one of the numbers 1 through 9. The board is solved when no numbers remain.
Good luck. Enjoy!
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