Entropic Killer / Entropischer Killer
(Published on 26. July 2026, 15:06 by PDN777)
Normal sudoku rules apply. Any set of three sequential cells along a beige entropic line must contain a low digit, a middle digit, and a high digit. For a 9 x 9 grid, this means 1-3; 4-6; and 7-9. Digits in a cage must sum to the little number in the upper left, and may not repeat in the cage. I think this puzzle is 1.5 stars out of 5 for difficulty for many solvers (actually, a GAS if you are familiar with the rules). As always, comments welcome. Thanks!
Click here to play on F-puzzles
Solution code: First row of puzzle.
Comments
on 10. September 2026, 11:33 by abadx
I agree with Vaurien, a solid 2*. The constraints are quite familiar, but some interactions between cages and lines make some steps a bit tricky. Anyway, I enjoyed the solved a lot.
on 21. August 2026, 04:05 by Vaurien
Good puzzle, but definitely a solid 2*, far too many tricky deductions to make along the whole solve path to consider this approachable by someone who's not that familiar with the constraints.
on 1. August 2026, 15:45 by PDN777
Thanks, Stabbers. Perhaps have a look at my back catalog? TY!
on 31. July 2026, 21:45 by Stabbers
Fantastic, would love to see more like this
on 29. July 2026, 14:56 by PDN777
Thank you all for the solves, and work (hard, medium, or easy). ;-)
on 27. July 2026, 08:41 by Mozart40
I was able to spot the break-in point quickly, so the path to the solution was very straight forward. Personally, I’d rate it 1 star, but that doesn't necessarily mean much, sometimes you just need a bit of luck and to look in the right place. It was fun and took about 16 minutes.
on 27. July 2026, 01:44 by macintux
I found it approachable but a long battle.
on 26. July 2026, 21:20 by sparkymanu
I don't know if I was tired but it didn't feel GAS at all but a solid 2*
Very enjoyable tho, thank you for submitting!
on 26. July 2026, 15:12 by PDN777
I needed to fix the SudokuPad link.
