Puzzle Detail
_v1 8×8 Mathdoku 8×8 Hard — Set 6
| 1= | 17+ | 4= | 13+ | 4- | |||
| 3=3 | 8= | ||||||
| 240x | 7 | 25+ | 11+ | 1= | |||
| 4= | 1= | 5= | 2/ | ||||
| 7= | 5= | 3- | 15+ | 2=2 | 8= | 11+ | |
| 3= | 2= | 5= | 1= | 18+ | |||
| 19+ | 5/ | 4= | |||||
| 14+ | 14x | 4= | 8= | 3= | 5/ |
Show solution
| 1 | 8 | 5 | 3 | 4 | 7 | 2 | 6 |
| 5 | 3 | 1 | 8 | 7 | 4 | 6 | 2 |
| 2 | 4 | 6 | 7 | 3 | 8 | 5 | 1 |
| 4 | 1 | 7 | 5 | 2 | 6 | 3 | 8 |
| 7 | 5 | 4 | 1 | 6 | 2 | 8 | 3 |
| 3 | 2 | 8 | 6 | 5 | 1 | 7 | 4 |
| 8 | 6 | 3 | 2 | 1 | 5 | 4 | 7 |
| 6 | 7 | 2 | 4 | 8 | 3 | 1 | 5 |
Solver Notes
Browse our full collection of 8x8 mathdoku puzzles — available in easy, medium, and hard difficulties, free to play online or print as PDF.
What is a 8x8 mathdoku?
A 8x8 mathdoku is a 8x8 grid number puzzle where you place digits 1–8 so no number repeats in any row or column, and each boldly outlined cage evaluates to a given target using the specified operation.
How hard is a 8x8 mathdoku?
The 8x8 grid is challenging and suitable for advanced solvers and adults.
Can I print 8x8 mathdoku puzzles?
Yes — all our 8x8 mathdoku puzzles are print-ready. Use the Print button on any puzzle page to download a clean PDF version with the solution included.