Puzzle Detail
Kenken Hard — Set 4
| 4= | 192x | 7= | 162x | 3= | 5= | |||
| 8 | 7= | 2= | ||||||
| 9/ | 8= | 3 | 6 | 7=7 | 3- | 72x | ||
| 3= | 21x | 6= | 7- | 9= | 12x | |||
| 4= | 3= | 16+ | 1= | 7= | ||||
| 6/ | 4- | 2- | 8= | 21+ | ||||
| 2 | 9= | 3= | 4= | |||||
| 42x | 9= | 2/ | 5- | 2/ | 14+ | 504x | ||
| 2= | 7 | 9+ | 1= |
Show solution
| 1 | 4 | 6 | 8 | 7 | 2 | 9 | 3 | 5 |
| 8 | 5 | 7 | 4 | 2 | 9 | 1 | 6 | 3 |
| 9 | 8 | 3 | 1 | 6 | 7 | 2 | 5 | 4 |
| 3 | 7 | 1 | 6 | 8 | 4 | 5 | 9 | 2 |
| 4 | 3 | 2 | 5 | 9 | 1 | 8 | 7 | 6 |
| 5 | 6 | 9 | 3 | 1 | 8 | 4 | 2 | 7 |
| 2 | 1 | 5 | 9 | 3 | 6 | 7 | 4 | 8 |
| 7 | 9 | 4 | 2 | 5 | 3 | 6 | 8 | 1 |
| 6 | 2 | 8 | 7 | 4 | 5 | 3 | 1 | 9 |
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.