Puzzle Detail
Classic Mathdoku Classic 8×8 Hard — Set 63
| 8= | 105x | 17+ | |||||
| 13+ | 4+ | 5/ | 8= | ||||
| 5- | 4=4 | 240x | |||||
| 3= | 14+ | 20+5 | 36x | ||||
| 23+ | 3= | 24x | 2= | ||||
| 35x5 | |||||||
| 10+ | 8= | 19+ | 5x | ||||
| 5- | 3- | 14+ | 7+ | 8= |
Show solution
| 8 | 5 | 2 | 4 | 3 | 1 | 6 | 7 |
| 2 | 7 | 3 | 6 | 1 | 5 | 8 | 4 |
| 7 | 2 | 4 | 1 | 6 | 8 | 5 | 3 |
| 3 | 4 | 1 | 8 | 5 | 7 | 2 | 6 |
| 5 | 8 | 7 | 3 | 4 | 6 | 1 | 2 |
| 4 | 3 | 6 | 5 | 8 | 2 | 7 | 1 |
| 6 | 1 | 8 | 7 | 2 | 3 | 4 | 5 |
| 1 | 6 | 5 | 2 | 7 | 4 | 3 | 8 |
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.