Sum Differences (region sums, difference dots)
(Published on 4. August 2026, 17:50 by Chilly)
Here is a simple experiment with region sum lines and difference dots that I made a while ago. It's pretty straightforward - please enjoy.
The Rules:
- Normal Sudoku rules apply.
- Region sum lines: Box borders divide the blue lines into segments, and the digits on each segment must have the same sum. Different lines may have different sums.
- Digits separated by a white dot have a difference indicated by the number in the dot.
Sum Differences
by Chilly
Solution code: Row 9
Last changed on on 4. August 2026, 22:39
Solved by Piatato, PinkNickels, seyunifang, jalebc, SKORP17, YookiJ, baltoguy, TheJakeEX, Postnormal, Megalobrainiac, killje, StevenS, idanz, fuxia, Mutiny, sujoyku, rictech, DetroitPiston, katze, Elizy, ... nunc, Crul, Tompzini, me and the paws, iamignat, ARCSparky, ggwp, ebulku, abadx, SMM, kangaroo, ManuH, Don_Huan, KJ_for_science, Shmartus, jsxft, Jodelbanane, hola, mcs131313, OGRussHood
Comments
on 6. August 2026, 01:21 by JohanW
That's a lot more doable with the 6 in r1c5 :P
Last changed on 5. August 2026, 16:59
on 5. August 2026, 16:55 by Jaspy94
Very good puzzle, 22:35 to solve. I agree with the 2* difficulty, as there was a few challenges that I had to work through.
Thanks - glad you enjoyed!
on 4. August 2026, 22:39 by Chilly
Fixed wording
Last changed on 4. August 2026, 22:40
on 4. August 2026, 22:28 by fuxia
Nice puzzle. Regarding the wording: Two things cannot be between one thing. You probably mean two digits connected by a white dot. :)
Yep - slip of the keyboard. Fixed now, thanks.
on 4. August 2026, 18:58 by Piatato
Smooth and fun, thanks!
