Puzzle Detail
Online Mathdoku Online 8×8 Mathdoku — Set 10
| 5/ | 16+ | 6= | 10+ | 7= | |||
| 3= | 12+ | ||||||
| 4=4 | 20+ | 21x | 6= | 8x | |||
| 8/ | 7 | 1- | |||||
| 19+2 | 1= | 21+ | |||||
| 3- | 19+ | 40x8 | 5- | ||||
| 6x | 20x5 | 6- | |||||
| 5= | 42x | 4= | 11+ |
Show solution
| 2 | 1 | 5 | 4 | 3 | 6 | 8 | 7 |
| 3 | 5 | 7 | 8 | 6 | 1 | 2 | 4 |
| 1 | 4 | 8 | 3 | 5 | 7 | 6 | 2 |
| 8 | 6 | 1 | 7 | 2 | 3 | 4 | 5 |
| 6 | 7 | 4 | 2 | 1 | 5 | 3 | 8 |
| 7 | 2 | 3 | 1 | 4 | 8 | 5 | 6 |
| 4 | 3 | 6 | 5 | 8 | 2 | 7 | 1 |
| 5 | 8 | 2 | 6 | 7 | 4 | 1 | 3 |
Solver Notes
Play our 8x8 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 8x8 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 8x8 mathdoku?
Yes — click the Hint button to reveal a single cell when you get stuck.
Can I also print the 8x8 mathdoku?
Yes — every online puzzle has a Print button that generates a clean PDF version with solution.