Puzzle Detail
Kenken Hard — Set 7
| 8x | 9= | 13+ | 5+ | 40x | ||||
| 4/ | 4= | 9= | 3= | |||||
| 12+ | 21+ | 4 | 1= | 26+ | 35x | 8+ | ||
| 1= | 1- | 4= | ||||||
| 840x | 120x | 5-9 | 6 | 45x | ||||
| 6+4 | 1= | |||||||
| 18+ | 8/ | 480x | 4= | 7= | ||||
| 6= | 2-8 | 5= | 16+1 | |||||
| 11+ | 54x | 19+ |
Show solution
| 4 | 1 | 9 | 6 | 7 | 3 | 2 | 5 | 8 |
| 1 | 8 | 6 | 7 | 2 | 5 | 4 | 9 | 3 |
| 5 | 9 | 4 | 1 | 8 | 7 | 3 | 2 | 6 |
| 7 | 2 | 3 | 5 | 9 | 1 | 6 | 8 | 4 |
| 8 | 3 | 7 | 2 | 4 | 9 | 1 | 6 | 5 |
| 3 | 5 | 2 | 4 | 1 | 6 | 8 | 7 | 9 |
| 9 | 6 | 1 | 8 | 3 | 2 | 5 | 4 | 7 |
| 6 | 7 | 8 | 3 | 5 | 4 | 9 | 1 | 2 |
| 2 | 4 | 5 | 9 | 6 | 8 | 7 | 3 | 1 |
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.