Rules:
Normal sudoku rules apply.
Divide the grid into two orthogonally connected regions; one green and one orange. No 2x2 area may be fully within one region.
In the green region, the value of a cell equals its digit, as normal. In the orange region, the value of a cell equals its row number plus its column number, regardless of what digit appears in the cell.
Values along a thermo strictly increase from bulb to tip.
If a black dot sits between two cells, the value of one is double the value of the other.
Lösungscode: Column 1 reading downwards
Gestern, 17:23 Uhr von ThymePass
I noticed the shadows on the black dots just now!
A very enjoyable puzzle. Thanks Marty :)
am 22. Juli 2026, 17:29 Uhr von davidz32z
A nice puzzle to distract me from this UK heat!
am 21. Juli 2026, 20:29 Uhr von mixus minimax
I'm always down to yin my yang.
I'm a sucker for global rules, not just yy but also global entropy, it's always very fun. Well made!
am 20. Juli 2026, 22:48 Uhr von LisaFr
Amazing puzzle! I often struggle with yin yang, but this tied in so nicely with the other constraints, might go down as one of my favorite puzzles ever :)
Thank you so much for setting and sharing!
am 19. Juli 2026, 10:51 Uhr von Crusader175
Very nice!
am 18. Juli 2026, 20:23 Uhr von Elker
Very fun and creative. Thanks for setting another gem.
am 17. Juli 2026, 20:21 Uhr von Klausku
That was great. Fun with thermos. Loved it. Thanks Marty.
am 17. Juli 2026, 19:51 Uhr von blackjackfitz
Huzzah!
am 17. Juli 2026, 16:32 Uhr von Tortugo
Absolutely adore this puzzle. Something about it is exactly my favorite style, even among other Marty-puzzles. I especially like the little shadows of the blackcurrants baking in the sun.
am 17. Juli 2026, 12:38 Uhr von varbrad
Great puzzle, loved it.
am 17. Juli 2026, 11:02 Uhr von sparkymanu
Only Marty can make a thermo sudoku so fun! Thank you as always for sharing those lovely puzzles! :D
am 17. Juli 2026, 10:55 Uhr von vukkarak
What a treat!
am 17. Juli 2026, 04:38 Uhr von kayqm
Marty doing Marty things.
am 17. Juli 2026, 02:13 Uhr von PatternSpren
This is my first ever Marty Sears puzzle that I solved all by myself! It was such a treat, thanks!
Please keep creating more yin yang puzzles :)
Marty: I will do, I love yin-yang! I've done quite a few yin-yang puzzles before - I made one called Cake by the Lake which was quite similar to this, check that out. Also Two Tone Totals and Zippery When Wet.
am 16. Juli 2026, 23:42 Uhr von Nylimb
Very nice!
I'm curious about the ID number. Did you create the puzzle and somehow arrange to get the right ID (as I suspect you did with 000RAT and 000RUN), or did you start to publish a different puzzle, notice the ID, and then create this one (as I did with 000JAM)?
Marty: haha GREAT question! The truth is, I saw when SUM and SUN were coming up so I thought I'd bag them, without any idea what I'd do for them. I've had them a while. Then this month CTC released a prompt to make a puzzle with the theme of temperature / hot weather, so i made this, and put the sun in the corner. Only then did I remember that I had the 000SUN ID, which made me smile a big smile...
am 16. Juli 2026, 18:16 Uhr von kasperd
The difficulty of this puzzle is suitable for solving on an unusually hot day such as today.
am 16. Juli 2026, 17:50 Uhr von amirs
Hot and fun!
am 16. Juli 2026, 16:46 Uhr von Miatc
Your unique rulesets never fail to impress me, they make even easier puzzles like this feel intellectually engaging and challenging.
am 16. Juli 2026, 16:13 Uhr von abw
Another fantastic puzzle Marty! I don't know how you do it, but you never fail to disappoint.
The yin-yang shading worked so well with the thermos and black dots. It's a really interesting combination of rules. I hope to see more like this.
Marty: hehe thanks, I am choosing to believe you meant that I never disappoint, rather than I never fail to disappoint ;)
am 16. Juli 2026, 15:56 Uhr von Arheus
Classic Marty :) Loved the rule btw, I hope to see it featured in more puzzles!
am 16. Juli 2026, 15:38 Uhr von Franjo
Thank you very much for creating and sharing another brilliant puzzle. Fresh thermo-logic!
am 16. Juli 2026, 15:26 Uhr von Montikulum
Not 2* in my universe, but definitely hot and as always an excellent logical path.
am 16. Juli 2026, 13:52 Uhr von dellC
Nice puzzle ID: "000SUN"
am 16. Juli 2026, 13:35 Uhr von nunc
Got stuck in the middle, then thought about doing Sudoku (how outrageous), and it all kept coming together quite quckly. Lovely idea, great execution!
am 16. Juli 2026, 13:21 Uhr von Remps
I loved the new thermo logic- almost made me ignore the sweat dripping down my forehead... almost.
am 16. Juli 2026, 12:58 Uhr von Qodec
Cool ... I mean hot idea!
am 16. Juli 2026, 12:31 Uhr von mscha
Very nice and topical puzzle!
I got started surprisingly quickly, and thought this was a 2 star puzzle at most. But halfway it got a bit trickier, so I gave it 3 stars after all.
am 16. Juli 2026, 12:24 Uhr von Chaka
Amazing puzzle!
| Schwierigkeit: | ![]() |
| Bewertung: | 98 % |
| Gelöst: | 340 mal |
| Beobachtet: | 4 mal |
| ID: | 000SUN |