Hot, Cold, Just Right
(Published on 1. May 2026, 02:55 by The Bard)
Normal Sudoku rules apply. Place the digits 1-9 in each row, column and box without repetition.
Global Entropy: Every 2x2 set of cells must contain at least 1 high (7,8,9), medium (4,5,6), and a low (1,2,3) digit.
Anti-Knight: Cells that are a Knight's move apart (in chess) may not contain the same digit.
Thermometers: Digits on grey thermos must increase from the bulb to the tip.
Arrow: Digits on an arrow must sum to the digit placed in that arrow's circle.
If you like this puzzle you may enjoy some of my other puzzles too, click HERE to see the other puzzles I have made.
Solution code: Row 1
Comments
on 20. May 2026, 20:22 by Innocuous
That was a lot of fun. Probably closer to a 4* IMO; it was tough to really get going, but once I did it flowed nicely and stayed consistently interesting through the very end.
on 5. May 2026, 08:50 by AnebodaSlatorp
Lovely thank you
on 3. May 2026, 19:30 by itsid
indeed very nice.. stumbled over my own colouring mistake luckily could recover
Thank you!
on 3. May 2026, 10:37 by InterestingAlgae
A very satisfying solve.
on 2. May 2026, 01:24 by Exigus
Fantastic rule combo. Thanks!
on 1. May 2026, 17:33 by Franjo
Thank you very much for creating and sharing this lovely puzzle. I gave 3.5* for difficulty, but I know I‘m bad at scanning global entropy …
on 1. May 2026, 14:51 by brskri
This puzzle may be easier than 3* for those very good at scanning entropy and knights. Hardest part for me.
on 1. May 2026, 14:47 by iEtsh
Very Fun <3 loved it!
on 1. May 2026, 14:07 by FoulMoodPotato
Immensely entertaing puzzle. It went so smooth once I remembered the anti-knight rule
on 1. May 2026, 10:14 by Kabuki73
Really nice one, I very much liked the interaction between Knight's move and entropy!
At the very beginning I was wondering how it would solve and the break in is not that easy (unless I missed something...).
