Sudoku Generator
Make a fresh sudoku at any of five difficulty levels. Every puzzle has exactly one solution. Use it once or generate a hundred. it's free either way.
Copy as text
080010600 109560024 000004030 000000900 920471068 006000000 040100000 870043209 005020040
Compact string (0 = empty): 080010600109560024000004030000000900920471068006000000040100000870043209005020040
Medium · 31 clues
- 1Pick a difficultyTap one of the five tabs. Easy is great for beginners; evil is for solvers who finish expert puzzles in their sleep.
- 2GenerateTap the orange button to get a new puzzle. Every grid is verified to have one valid answer.
- 3Play or saveHit Play interactive to open the puzzle in the full game. Or use the share text to copy the grid as a string.
Generator FAQ
Are these puzzles unique?
Yes. The generator only returns puzzles with exactly one valid solution. Anything else is thrown out before you see it.
How many clues does each difficulty have?
Easy puzzles start with 40–45 numbers. Medium 32–36. Hard 28–31. Expert 25–27. Evil drops to 22–24, near the practical lower limit for logical play.
Can I get the same puzzle twice?
Yes, if you use the same seed. The API accepts ?seed=12345 and returns the same puzzle every time.
Will the same difficulty always feel the same?
Mostly. The clue count is consistent, but a hard puzzle that needs an X-wing can feel harder than one that doesn't, even at the same level.