Cavernous Construction
(Published on 5. May 2022, 06:47 by GarlicBredFries)
Rules
Every digit from 1 to 9 appears once in every row, column, and region.
The 9 regions are to be determined. Every region is a set of 9 orthogonally connected cells.
Circled digits signify the number of cells it sees orthogonally in its region (including itself).
Not all circles are necessarily given.
Example Puzzle
Play on f-puzzles, Penpa Plus, CTC Webapp. (Penpa has answer check)
The Puzzle
Play on f-puzzles, Penpa Plus, CTC Webapp. (Penpa has answer check)
Solution code: Row 4, then row 5 (left-to-right)
Comments
on 2. May 2024, 10:34 by Mr.CHEN
A Chinese solve video(SPOILER ALERT):https://b23.tv/g6XeJK1
on 6. January 2023, 22:14 by RandallPepperidge
Absolutely unbelievable
on 19. December 2022, 21:03 by Niverio
Opening was pretty satisfying :D
on 30. May 2022, 14:35 by AnnaTh
Brilliant!
on 22. May 2022, 00:21 by Christounet
Incredible puzzle ! I liked that there were a lot of circles and that I didn't know where to look immediately. Made the discover even more enjoyable. Very nice deductions in the construction part !
on 17. May 2022, 19:15 by kolot
Great puzzle. Every step is cleverly designed. I loved it.
on 6. May 2022, 22:03 by Nightingale's Code
Just gorgeous! Every step of the way led to beautiful deduction after beautiful deduction. Had a smile on my face the whole time. Was very challenging and took me quite a while but couldn't be more impressed with this puzzle! Thanks so much for sharing with us this masterpiece.
on 6. May 2022, 16:39 by Dag H
Stunning puzzle, very well done. Took me over 2 hours spread over two days, was so happy when I finished it I nearly cried lol
on 6. May 2022, 10:03 by MagnusJosefsson
Great puzzle! Some really nice logic to discover.
on 6. May 2022, 07:22 by Bootenks
If you don't have a dictionary at hand, here you can understand the definition of beautiful puzzle. Marvelous.
on 6. May 2022, 02:59 by Willy Wonka
Beautiful!
on 5. May 2022, 22:35 by marcmees
nice construction... logical path well laid out. thanks
on 5. May 2022, 15:49 by Vebby
Brilliant puzzle, really enjoyed the logic in this one! :)
on 5. May 2022, 14:30 by twobear
Had a lot of fun. Thank you!
on 5. May 2022, 11:01 by KNT
Maybe I missed some obvious steps, but I actually found this puzzle pretty challenging
