Each region is a snake. Each end of a thermometer is also an end of a snake region.
A snake is a one cell wide path of orthogonally connected cells that does not branch or contain a 2x2 block of cells.
A 9x9 example grid just to show valid snake regions
Note there are only 8 thermos in the grid. Unfortunately the 9th was stolen.
Play online
CtC
I would recommend using the pen tool to mark the thermo ends. If you are finding the thermos too distracting, try the second uncluttered link below to build the regions separately.
Region Builder
If you enjoyed this, please check out my other puzzles.
Lösungscode: Row 1
am 21. Oktober 2023, 13:45 Uhr von marcmees
very nice. thanks
am 10. Dezember 2022, 14:27 Uhr von Al Fresco
Thank you kjholt & SeveNateNine for the nice feedback.
am 10. Dezember 2022, 10:10 Uhr von SeveNateNine
Top tier break-in!
am 10. Dezember 2022, 01:40 Uhr von kjholt
Loved this! Got stuck in the middle and as soon as I figured it out it was smooth sailing from there. Very clever!