Chin's Traps
(Published on 5. April 2026, 16:56 by ChinStrap)
An older Scojo prompt was to make something punning on your name or using rules that match your initials. I had already done Chinmax Skystrappers but at the time juggler made a joke I should do a puzzle called Chin's Trap. I never quite was sure what I'd do with the title, but finally landed on this. Thanks to all testers and I hope you enjoy!
- Normal sudoku rules apply on the inner 9x9 grid.
Numbered Rooms:
- All outside cells on a line must contain a digit. That digit must also appear in the Nth position looking into the grid in the row/column, where N is the digit in the first position.
Tentropy Lines:
- Every set of 4 adjacent digits on a hollow peach line must contain a digit from each of the X-pair (ten-pair) subsets of {1,9}, {2,8}, {3,7}, and {4,6}. A 5 may not appear on a tentropy line. Digits on a line may repeat if allowed by other rules.
All feedback (positive or critical) appreciated!
Solution code: Box 3, in left to right reading order (9 digits)
Comments
on 7. April 2026, 10:24 by Franjo
Thank you very much for creating and sharing this unusual puzzle. I really enjoyed solving this, though it was quite hard for me to follow my own confusing pencil marks…
on 6. April 2026, 18:33 by joelagibbs
That was bonkers, so fun!
on 6. April 2026, 10:03 by sorryimLate
I like this very much! Low 3*. Thank you!
on 6. April 2026, 02:37 by Gankra
The tentropy lines were much nicer to work with than I was braced for, and it was fun finding all the little tricks!
I really hope I did a bad job of solving this because my coloring was an absolute nightmare and I never felt like I really knew where to look next, since the interactions felt very nonlocal. Spent way too long with 6 different colors to represent my inability to disambiguate the pairs, and was only able to collapse them to 4 right at the end.
on 5. April 2026, 18:19 by SKORP17
auf der deutschen Seite fehlt der Code (Box3)
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Fixed. Thanks.
on 5. April 2026, 17:10 by SennyK
For me 4*, but very enjoyable puzzle! :-)
