Extended-Release Pyretic
(Published on 12. April 2025, 02:44 by jennyaa)
- Standard 4x4 sudoku rules apply: The digits 1 through 4 appear in every row, column, and 2x2 box.
- There is one slow thermometer hidden somewhere in the grid. Digits along this thermometer can repeat but cannot decrease as you move from bulb to tip.
- The length of the thermometer is indicated by the 2-digit number inside the pill. The pill may or may not be part of the thermo.
Set at SudokuCon 2025.
Play in SudokuPad

Solution code: Bottom row
Last changed on on 16. April 2025, 16:42
Solved by Steven R, starfall, mathpesto, Nordy, foggybrume, marcmees, henter, stevenxuabc, SKORP17, zeniko, short_c1rcuit, jwsinclair, zrbakhtiar, metacom, killje, banhkep, tgstar, Crusader175, geronimo92, ... bereolosp, flaemmchen, drf93, MTFlowCzq, aquariumas, antzervos, GWilliams00, piyush, Exigus, TVDK, RoystonDA, zoonel, realicraft, Dez256, 5381, davidgcunning, Spooof, roscommon, NeroChaos, googuee
Comments
on 12. November 2025, 18:51 by googuee
Nice puzzle!
Last changed on 18. April 2025, 18:49on 18. April 2025, 18:47 by PancakePie
Very fun play with shapes and a nice, quick snack once you find those shapes! Loved it.
on 18. April 2025, 15:16 by peep50183
Short, but very sweet :)
on 15. April 2025, 10:07 by meatbox
Well I solved it, but no idea where the thermo went... just the idea that there was one was enough to get it for me
on 15. April 2025, 03:06 by sort
i dont even see how this is possible fitting a 12 or bigger termo in this
on 14. April 2025, 17:14 by Puzzle Weasel
Very elegant! Maybe you should include an explanation of slow thermo rules for anyone not familiar.
on 12. April 2025, 04:52 by Nordy
That was cool!