Region Thermo 3
(Published on 15. April 2026, 10:07 by RedBarchetta)
Rules: Normal Sudoku / Normal Variant rules apply.
Normal: Place the digits 1 to 9 once each in every row, column, and 3x3 box.
Region Sum Lines – Box borders divide blue lines into sections with equal sums. Blue lines and their section sums may be the same as or different from other blue lines and their section sums.
Slow Thermometer – Digits may not decrease as they move along the thermo from the bulb end.
Commentary Corner: Just exploring combining 2 constraints. Easy Peasy.
Links: Puzzle 3 of 4
Prior Puzzles:
Solution code: Row 4 - Left to Right
Comments
on 19. April 2026, 20:16 by Narayana
@Champiggy
They are slow thermos so it is possible that there is a ...66... or ...77... that you are missing.
on 18. April 2026, 23:05 by Champiggy
I'm gonna need some help. I don't understand how it's possible to put 8 and 9 in the bottom middle box given the presence of the two 9-length thermos
on 16. April 2026, 13:38 by Blackophelia
That was lovely! Great interplay with the constraints!
on 16. April 2026, 06:00 by macintux
I kept telling myself there wasn’t enough information to make headway, but it came together nicely once I accepted I’d just have to do some math.
on 15. April 2026, 14:06 by boggles
classy solve :)
on 15. April 2026, 13:30 by henryjclay
very satisfying and pleasant solve!
on 15. April 2026, 10:21 by marajade
What a fun combination, I enjoyed how different it felt from traditional region sum lines!
