Puzzle Detail
Calcudoku 9×9 — Set 2
| 5= | 6= | 8= | 9 | 9+ | 1- | |||
| 54x | 1- | 7= | ||||||
| 336x | 5= | 18x | 16x | |||||
| 9= | 6-3 | 28x | 4= | |||||
| 20+ | 4= | 7= | 6- | 1- | 1- | |||
| 3= | 3- | 6= | 9= | 4- | ||||
| 0- | 6= | 7- | 24+ | 3= | 18x9 | 9+ | ||
| 6= | 8=8 | 4 | ||||||
| 8x | 7= | 1=1 | 2- | 3= |
Show solution
| 5 | 1 | 6 | 8 | 9 | 4 | 2 | 3 | 7 |
| 8 | 9 | 3 | 2 | 4 | 1 | 5 | 7 | 6 |
| 1 | 7 | 5 | 9 | 6 | 3 | 4 | 8 | 2 |
| 6 | 5 | 9 | 3 | 8 | 2 | 7 | 4 | 1 |
| 3 | 8 | 4 | 7 | 2 | 5 | 6 | 1 | 9 |
| 4 | 3 | 2 | 1 | 7 | 6 | 9 | 5 | 8 |
| 7 | 2 | 1 | 6 | 5 | 8 | 3 | 9 | 4 |
| 9 | 6 | 8 | 4 | 3 | 7 | 1 | 2 | 5 |
| 2 | 4 | 7 | 5 | 1 | 9 | 8 | 6 | 3 |
Solver Notes
Our 9x9 calcudoku puzzles are the hardest grid size — designed for advanced solvers who want the ultimate arithmetic cage challenge.
How hard is 9x9 calcudoku?
The 9x9 grid is extremely challenging, requiring systematic elimination across all rows, columns, and cages simultaneously.
Are solutions provided?
Yes — every 9x9 calcudoku includes a complete verified solution.
Can I print these?
Yes — a clean printable PDF is available for every puzzle.