Rules
Normal sudoku rules apply.
Cells that appear in the same relative position in their 3x3 box must not contain the same number [Disjoint groups].
Within a cage, digits must not repeat and they sum to the small number in the top left corner.
Solution code: Column 1
yesterday, 02:20 by MRossPSU
Found the first bit of logic easier than the second major stepping stone
on 15. May 2026, 21:58 by Exigus
Loved the break in, with a little colouring after that it was fairly smooth with bit of cage-math. Thanks!
on 15. May 2026, 17:28 by Snookerfan
The break-in was beautiful, although tricky to find. Somehow the rest of the puzzle was really hard, but that is mainly because of disjoint groups scanning, which is not my strength. There may have been some tricks that I have missed. Not my most enjoyable solve. Thanks
| Difficulty: | ![]() |
| Rating: | 89 % |
| Solved: | 20 times |
| Observed: | 0 times |
| ID: | 000SN9 |