Puzzle Detail
Kenken Hard — Set 8
| 4-2 | 7/ | 5 | 1= | 9= | ||||
| 7= | 4- | 96x | 20+ | 4= | ||||
| 3= | 7= | 0- | ||||||
| 3- | 8- | 4 | 15+ | |||||
| 1= | 1- | 6= | ||||||
| 8/ | 6x | 10+ | 56x | 5 | 20+ | |||
| 6= | 3= | 6- | ||||||
| 4=4 | 7= | 4- | 2= | 6/ | 6= | |||
| 9= | 8= | 10x | 4= | 20+ | 7 |
Show solution
| 2 | 6 | 8 | 7 | 5 | 1 | 9 | 4 | 3 |
| 7 | 9 | 3 | 1 | 6 | 2 | 5 | 8 | 4 |
| 3 | 2 | 9 | 4 | 1 | 8 | 7 | 6 | 5 |
| 5 | 3 | 7 | 6 | 8 | 9 | 4 | 2 | 1 |
| 1 | 5 | 4 | 2 | 9 | 7 | 6 | 3 | 8 |
| 8 | 1 | 6 | 3 | 7 | 4 | 2 | 5 | 9 |
| 6 | 4 | 1 | 9 | 3 | 5 | 8 | 7 | 2 |
| 4 | 7 | 5 | 8 | 2 | 3 | 1 | 9 | 6 |
| 9 | 8 | 2 | 5 | 4 | 6 | 3 | 1 | 7 |
Solver Notes
Our hard KenKen (mathdoku) puzzles feature large grids and complex cage calculations — designed for advanced solvers.
What makes a KenKen puzzle hard?
Hard KenKen uses 8x8 or 9x9 grids with long cage chains and ambiguous arithmetic combinations that require systematic elimination.
Are solutions provided?
Yes — every hard KenKen puzzle includes a verified solution.
Do I need to guess?
No — every puzzle has a unique logical solution requiring no guessing.