Puzzle Detail
Classic Mathdoku Classic 9×9 Hard — Set 94
| 11+ | 840x | 5/ | 4 | 7- | ||||
| 27x | 2= | 6= | 84x | |||||
| 11+ | 3= | 1= | 6= | 56x | 72x | |||
| 8= | 144x | 504x | 5/ | |||||
| 6= | 4- | 4 | 16+ | 2 | 10+ | |||
| 5- | 6+ | 22+ | 14+ | |||||
| 105x | 4/ | 1= | 10+ | |||||
| 8= | 21+ | 5+ | 6= | 14+ | ||||
| 7= | 4= | 1 | 5+ | 48x |
Show solution
| 2 | 9 | 7 | 6 | 5 | 1 | 4 | 3 | 8 |
| 9 | 3 | 4 | 5 | 2 | 6 | 8 | 7 | 1 |
| 5 | 2 | 3 | 1 | 6 | 8 | 7 | 9 | 4 |
| 4 | 8 | 6 | 3 | 7 | 9 | 5 | 1 | 2 |
| 6 | 5 | 9 | 8 | 1 | 4 | 3 | 2 | 7 |
| 1 | 6 | 2 | 4 | 8 | 7 | 9 | 5 | 3 |
| 3 | 7 | 8 | 2 | 9 | 5 | 1 | 4 | 6 |
| 8 | 1 | 5 | 7 | 4 | 3 | 2 | 6 | 9 |
| 7 | 4 | 1 | 9 | 3 | 2 | 6 | 8 | 5 |
Solver Notes
Our classic mathdoku puzzles mix all four operations (addition, subtraction, multiplication, division) just like the original KenKen format.
What makes a mathdoku puzzle classic?
Classic mathdoku uses cages with any of the four arithmetic operations, matching the original KenKen-style puzzle format.
Are classic mathdoku puzzles good for beginners?
Start with the 4x4 classic grid — it's the easiest entry point into the full mathdoku experience.
Where can I print classic mathdoku?
Every puzzle page on Freemathdoku.com has a Print button that generates a clean PDF with the answer key.