Puzzle Detail
_v1 8×8 Mathdoku 8×8 Hard — Set 8
| 10x | 4= | 16x | 14+ | 3 | |||
| 8x | 1 | 504x | 6= | ||||
| 3= | 8= | 12+ | 70x | ||||
| 7= | 6x | 5= | 22+ | ||||
| 40x | 42x | ||||||
| 6/ | 7= | 180x | 192x | ||||
| 1- | 8= | 84x | 6+ | ||||
| 4= | 6 | 16+ | 7= |
Show solution
| 5 | 2 | 7 | 4 | 8 | 1 | 6 | 3 |
| 8 | 1 | 4 | 3 | 2 | 6 | 7 | 5 |
| 3 | 8 | 6 | 7 | 5 | 2 | 1 | 4 |
| 7 | 3 | 2 | 1 | 4 | 5 | 8 | 6 |
| 2 | 6 | 3 | 5 | 1 | 7 | 4 | 8 |
| 1 | 7 | 5 | 8 | 6 | 4 | 3 | 2 |
| 6 | 4 | 8 | 2 | 7 | 3 | 5 | 1 |
| 4 | 5 | 1 | 6 | 3 | 8 | 2 | 7 |
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.