Normal sudoku rules apply.
A clue outside the grid indicates that, in the row or column next to the clue, there are exactly N ways of choosing a set of adjacent digits that sum to the clued value, where N is the first digit seen by the clue.
For example, a clue of 6 could be found on the left of a row containing [321546789], because there are 3 ways of making a sum of 6 with adjacent digits: [321], [15], and [6].
Solution code: Column 5
on 3. February 2025, 15:18 by Qodec
Madness that this can solve logically.
on 1. February 2025, 18:06 by askaksaksask
The logic and breakin here were certainly more accessible than Taiga, though this wasn't a walk in the park! There was some great logic in producing the "right" amount of sums, as well as some fun arithmetic-accounting elements. A step up from canonical killer cage and sum line logic. Brilliant as always. Thank you!!
on 1. February 2025, 14:05 by sanabas
Interesting rule idea, fun solve.
on 1. February 2025, 13:35 by wuc
What a mind bender. Loved the new ideas to think about. But nooooot easy at all. Great fun thx.
on 31. January 2025, 20:47 by Fool on Hill
Another fine puzzle with some excellent logic.
on 31. January 2025, 17:07 by Snookerfan
Brilliant puzzle with a very interesting constraint! I believe that I have never been this confused solving a puzzle before, great fun. Thank you
on 31. January 2025, 15:19 by antiknight
Great idea for a constraint!