Inspired by a previous idea. Difficulty estimated at 2 stars if you do a little Sudoku along the way.
Rules:
Normal Sudoku rules apply.
Each gray thermosquare is the start of a non-branching thermosnake that moves orthogonally through the grid. A thermosnake cannot touch itself orthogonally or diagonally, but it may touch any other thermosnake any number of times. Two different thermosnakes cannot enter the same cell.
Each thermosnake is exactly 7 cells long, and the digits along a thermosnake increase from start to end.
Solve online:
Solution code: Digits on a thermosnake, read from left to right, in Row 6 and then Row 9
on 15. February 2025, 00:48 by cooljjsplater
Really fun! This is the first puzzle I have done like this, and it was just difficult enough to make me really think, but not too hard at any point that I ever felt frustrated.
on 14. January 2025, 14:15 by Karitsu
This was a delight! Hope to see more thermosnakes in the future!
on 14. January 2025, 08:42 by Snaques
What an absolute gem of a puzzle!
on 14. January 2025, 07:22 by yttrio
This was really interesting figuring out how the various snakes could grow!
on 14. January 2025, 03:07 by mathpesto
Consistently smooth and fun! Great concept and perfect execution.
on 14. January 2025, 01:20 by Titus Adduxas
Lovely puzzle with some interesting logic.
on 13. January 2025, 23:56 by fitzie
i overlooked the snake cannot touch itself rule, but still found the solution (with a snake ambiguity). now I'll have to try it again and see if it makes the solve easier :)
on 13. January 2025, 21:48 by BenTen
Very nice and very fun puzzle. Thanks for setting. 3 star difficulty from me.
on 13. January 2025, 19:51 by Franjo
Funny snake puzzle! I really enjoyed solving this well constructed gem. Thank you very much for creating and sharing.
on 13. January 2025, 19:45 by Big Tiger
Very fun, very satisfying. A challenge without being a burn-out.
on 13. January 2025, 19:01 by Piatato
Cool! Fun, not easy, and not hard :-)
on 13. January 2025, 18:57 by sealsinthesoup
Awesome, this flowed very nicely. There was never a point where I needed to pause for more than a few minutes, but none of it was too obvious until it was just about done.
on 13. January 2025, 15:59 by Snookerfan
Gorgeous puzzle! Very entertaining. Thank you
on 13. January 2025, 14:53 by dumediat
Approachable and very entertaining, thank you!
on 13. January 2025, 14:04 by Killer-Ly
Wonderful! Thank you!
on 13. January 2025, 13:52 by Calvinball
Fantastic puzzle, and those little snake icons are just so freaking cute.
on 13. January 2025, 12:57 by wuc
An awesome smooth consistent puzzle in my opinion. At least 3* for me. The restriction that thermos cant touch themselves is easy to overlook. There is a bit of chaos construction skills required as well. Great setting thx.
on 13. January 2025, 12:29 by Mozart40
Sorry, I was too stupid to enter the code coreectly. I like the idea.