Quadsumes
(Published on 19. January 2026, 08:15 by SennyK)
Puzzle has been featured on BremSter YouTube channel: link and Frank Puzzles YouTube channel: link
Today we have puzzle created for Scojo's prompt, as redeemed by MathGuy_12, to create a puzzle that highlights the interaction between a sum dot and another constraint :-)
I hope you will enjoy and I would be really grateful for all the comments and ratings.
Normal sudoku rules apply.
Sum dot: Digits in cells touching a gold sum dot must sum to the indicated total. Digits may repeat if allowed by other rules.
Quadruples: Digits in a sum dot must appear within the four surrounding cells.
If you liked this puzzle, I recommend trying out my other puzzles :-)Solution code: Ninth (9th) row of the grid from left to right.
Comments
on 5. February 2026, 22:22 by bleppie
Nice, smooth logic throughout
on 3. February 2026, 19:47 by damo_89
What a lovely puzzle. Harder end of 1* but very fun when you see the tricks
on 22. January 2026, 11:56 by Zelfie
Quadruples + maths = a lot of fun, thank you for this lovely puzzle!
on 22. January 2026, 10:19 by Ol-Jay
Wow, very cool! Always enjoy a new constraint with a satisfying logic. :)
on 20. January 2026, 12:33 by marajade
Delightful! I've always enjoyed the quadruple constraint and I loved exploring the logic that came from adding this extra little complication to the constraint!
on 20. January 2026, 11:27 by Fra314
Excellent puzzle, great fun!
on 20. January 2026, 08:52 by NotVeryNeat
Woohoo!! A blast to solve!
on 20. January 2026, 05:40 by meggen033
Very nice puzzle! Thanks!
on 20. January 2026, 01:09 by 99%Sneaky
A superb execution of the ruleset!
on 19. January 2026, 20:37 by Caconym
Very nice, easier but still very clever setting. Thanks for sharing and making my commute more fun
on 19. January 2026, 16:13 by HeyItsErin
Another stellar puzzle from you! Would love to see a 2* version of this!
on 19. January 2026, 15:32 by varbrad
Interesting! Thanks :)
on 19. January 2026, 15:12 by MathGuy_12
Very nicely done!
on 19. January 2026, 14:24 by macintux
Currently sitting at a well-deserved 99% rating, great job.
on 19. January 2026, 13:30 by rojspencer
Fun combination of constraints. Thanks!
on 19. January 2026, 11:17 by Wuschel
Very nice, thank you!
on 19. January 2026, 08:21 by juggler
Neat!
