Chaotic Sums
(Published on 15. August 2026, 11:55 by Prof.Dori)
Chaotic Sums
Rules:
Divide the grid into four regions of orthogonally connected cells, and fill the grid using the digits 1-9, so that no digit repeats in any row, column, or region.
A clue X outside the grid indicates the sum of all the digits that appear in its row or column before reaching the target digit X (starting from the end with the clue).
For any clue, the digits that sum to X must all be in one region, and the digit X itself must be in a different region.
Click here to start the puzzle
Solution code: Row 3 with dashes between borders (for example 1-23-456).
Comments
yesterday, 02:32 by MysticMan
Lovely puzzle!
on 19. August 2026, 22:54 by TimBoPavey
Very satisfying. Thank you.
on 18. August 2026, 16:51 by amchap
That was beautiful. Thanks for sharing.
on 16. August 2026, 19:34 by bboom
Quite different from most puzzles without being hard. Very accessible way to get into weirder puzzles.
on 15. August 2026, 23:37 by jubengo
Simple yet beautiful.
on 15. August 2026, 18:56 by Pairot
I really really liked this one.
on 15. August 2026, 14:09 by emoney1374
Good puzzle!
on 15. August 2026, 12:21 by amirs
Nice, clever, approachable and definitely chaotic puzzle
on 15. August 2026, 12:18 by sujoyku
What a wonderful puzzle! Thank you for setting and sharing this gem, Prof.Dori!
