Count Some Dominoes
(Published on 10. June 2026, 18:28 by mellowrobinson)
This one is on the harder side of 3 stars difficulty, but I didn't feel it was quite 4 stars. Your mileage may vary, but I hope you enjoy the puzzle!
Chaos Construction:
- Divide the grid into nine orthogonally connected regions, and fill every cell with a digit from 1-9 so there aren't repeats in a row, column, or region.
Domino Counters:
- A domino is two cells that share an edge.
- The digit in a caged cell indicates how many dominoes entirely within its region sum to the indicated total. Dominoes that are only half in the region don't count. A cell may belong to multiple dominoes.
- Digits separated by an X sum to 10, and separated by a V sum to 5.
Click here to solve
Solution code: Row 7, with a dash for region borders. e.g. 123-45-678-9
Comments
on 29. June 2026, 12:53 by mscha
Beautiful puzzle! I agree with the "harder side of 3 stars" judgement.
on 26. June 2026, 04:30 by MaizeGator
Very nice and original ruleset idea
on 13. June 2026, 11:48 by Christounet
Very nice setup! Tricky ending with the last couple of clues. Thanks :)
on 12. June 2026, 17:04 by mellowrobinson
Rule clarity edit
on 11. June 2026, 18:17 by vukkarak
3* for me. It was fun especially how I recovered from my mistakes. Beautiful!
on 11. June 2026, 15:33 by kisukeA
I agree with your description, it's on the upper end of 3* difficulty, based on my completion time at least, or maybe it just suited my strengths. Nonetheless, it is a most beautiful puzzle.
on 11. June 2026, 15:14 by Snookerfan
Great puzzle! The finish was certainly 4 stars, but the rest was so smooth that I averaged it to 3. Thanks
on 11. June 2026, 14:19 by Franjo
Thank you very much for creating and sharing this lovely CC-puzzle. Normally I give more stars than the average, but this was a clear 3* for me. Very smooth solve path, though the finish got a bit tricky.
on 11. June 2026, 07:41 by Chaossudokusplease
Always great to see a smooth, interesting but still approachable CC puzzle! Fantastic work and would love to see this ruleset on more puzzles!
on 11. June 2026, 02:44 by Chefofdeath
Another wonderful CC! Thanks!
on 11. June 2026, 01:34 by DubiousMobius
What a lovely start! What a lovely finish! Tough but smooth throughout. Very impressive setting!
on 10. June 2026, 23:25 by NPlusOne
Awesome puzzle! Really satisfying to see the regions emerge. The ending was quite challenging but resolved very nicely :)
on 10. June 2026, 20:48 by Dcs
Lovely ruleset and chaos construction! Got stuck a few times and the solution always seemed to be right under my nose.
