Puzzle Detail
Online Mathdoku Online 9×9 Mathdoku — Set 4
| 0- | 9= | 4= | 6= | 3 | 5= | |||
| 5-4 | 8x | 4- | 3/ | 3= | ||||
| 6= | 9=9 | 8+ | 5= | |||||
| 13+ | 16+ | 2= | 7- | |||||
| 7 | 2- | 24x | 9= | 4/ | ||||
| 2= | 6= | 7- | 1= | 72x | ||||
| 4= | 7- | 9/ | 8 | |||||
| 10+ | ||||||||
| 25+ | 2 | 1- | 7- | 8- | 7= |
Show solution
| 7 | 1 | 8 | 9 | 4 | 6 | 3 | 2 | 5 |
| 4 | 9 | 1 | 8 | 6 | 7 | 2 | 5 | 3 |
| 6 | 8 | 9 | 1 | 7 | 4 | 5 | 3 | 2 |
| 1 | 3 | 5 | 2 | 9 | 8 | 4 | 6 | 7 |
| 5 | 7 | 6 | 4 | 3 | 2 | 1 | 9 | 8 |
| 2 | 6 | 4 | 7 | 5 | 3 | 8 | 1 | 9 |
| 3 | 4 | 7 | 6 | 2 | 5 | 9 | 8 | 1 |
| 8 | 5 | 2 | 3 | 1 | 9 | 7 | 4 | 6 |
| 9 | 2 | 3 | 5 | 8 | 1 | 6 | 7 | 4 |
Solver Notes
Play our 9x9 mathdoku online — an interactive puzzle engine lets you enter numbers, get real-time error feedback, and check the solution whenever you are ready.
Do I need to sign up to play 9x9 mathdoku online?
No — all online mathdoku puzzles on Freemathdoku.com are free to play with no account or download needed.
Are there hints for online 9x9 mathdoku?
Yes — click the Hint button to reveal a single cell when you get stuck.
Can I also print the 9x9 mathdoku?
Yes — every online puzzle has a Print button that generates a clean PDF version with solution.