Signpost (4x4)
(Published on 14. January 2026, 11:44 by Mr Toffee)
Slow-Thermo Sudoku
(O) Bulbs ≤ Tips ( I )
Digits must never decrease along thermometers from bulb to tip.
...Digits may therefore repeat along thermometers.
Flows may merge or diverge, but must always end at a given tip.
Colours are not part of the puzzle.
Try the puzzle here
Solution code: Column 4 from top to bottom
Last changed on on 8. August 2026, 16:45
Solved by maglia, zhangjinyang, jorningekr, ranhothchord, logik66, Matti64, miaucat_, ludvigr04, pjot, Fisherman, Adaki, L00ping007, DaFunkyMonk, sme, micjo, marcmees, BBoris, Eraelan_2, peep50183, ... asynchronous, cam_san, Chosifew, cimbraien, pin7guin, soldierguy365, DTowns27, BtterSweet, sfsdgdsg, ggwp, AVANESSQUE, Mr. Happy, Skully571, firespire, Felden, rustographer, Hydalin, Montikulum
Comments
on 15. July 2026, 18:04 by question mark
31s
on 18. February 2026, 16:03 by madlil
yay! 30 seconds
on 15. January 2026, 04:22 by godofthunder
Mr. Toffee, your are the G.O.A.T.
on 15. January 2026, 04:15 by macintux
I’m pretty sure 36 seconds is a personal record. Thanks for the puzzle,
