Logic Masters Deutschland e.V.

A foggy day

(Published on 9. March 2026, 12:57 by Roseelms)

This is my second sudoku, so any advice is appreciated

There is a difference of at least 5 between digits on a german whisper line (green)

Digits in killer cages are unique, and sum to the number in the top left corner

Digits connected by an X sum to ten

Digits connected by a V sum to five

Digits connected by a black kropki dot are in a 2:1 ratio

Digits connected by a white kropki dot are consecutive

Digits on thermometers increase from bulb to tip

Digits on a renban line (purple) are consecutive, in any order

Play it here

Solution code: Row 9

Last changed on on 11. March 2026, 13:53

Solved by ludvigr04, CrippledLamp, jkuo7, PinkNickels, Prepared Jester, micjo, Deivi55, Testpilot Pirx, Dalend, HazelTheColor, Mathemagier, EmX68, Ragna, Chilimy, ole-1995a, sparkymanu, Jasperrr, abs, Matti64, ... Avron, Phandor, filz, das, Liverpool98, Javier Rebottaro, timww572, josemadre, Baconator, Schneehuhn, croo377, jahnicec, TeddieMilo, 0203017, Docbes, Zzzzz..., Kigor, stinger10x, arteful, stafen
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Comments

on 20. March 2026, 07:54 by Blackophelia
Lovely puzzle, would be good to clarify the dynamic for aspect.

on 16. March 2026, 13:24 by Plok
Lovely puzlle.

Please add dynamic fog to instructions.

on 11. March 2026, 13:53 by Roseelms
Solution code

on 10. March 2026, 17:47 by baltoguy
Had a lot of fun with the puzzle. I take no position on standard vs dynamic fog, but I prefer the rules to specify which.

on 10. March 2026, 07:27 by JVA
Thanks @ludvigr04 for posting what the solution code is supposed to be

on 9. March 2026, 19:44 by Pairot
I think it's better to reveal all the remaining cells when the last clue is revealed.

on 9. March 2026, 19:17 by wuc
Fun solve thx.

on 9. March 2026, 16:55 by wuc
Fun solve thx.

on 9. March 2026, 16:38 by Myfyr MJ
Nice buti prefer normal fog reveals to dynamic fog.

on 9. March 2026, 16:10 by StefanSch
I like this form of fog reveal more. In the other case (correct cells light up white) it is verry easy to "solve" a puzzle, just by entering random numbers until the cell gets white.

Last changed on 9. March 2026, 17:54

on 9. March 2026, 14:47 by Jasperrr
I'm not a fan of this particular form of fog reveal. I would expect single correct cells to light up white, like with other fog puzzles.

There was a lengthy part near the middle and end, where I kept filling in cells but nothing got revealed. Until I completed the actual puzzle and it turned out they were all just white cells.

@StefanSch you could also cheat by just entering numbers and checking with the solver. The solution would be to simply not enter random numbers :D

on 9. March 2026, 14:25 by Ragna
Beautiful puzzle! Thank you. :-)

on 9. March 2026, 13:22 by ludvigr04
Solution code is Row 9

Difficulty:1
Rating:84 %
Solved:213 times
Observed:4 times
ID:000RTI

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