Rules:
Normal sudoku rules apply.
Most of the grid is obscured with fog. Entering correct digits may clear fog somewhere in the grid.
A digit on a lime green 'minimum line' must be equal to or greater than the number of cells that the line occupies.
A digit on a blue 'maximum line' must be equal to or less than the number of cells that the line occupies.
Lines do not branch, cross each other, or share cells.
Solution code: Column 9 reading downwards
on 4. August 2026, 08:50 by Exigus
Super cool!
on 2. August 2026, 21:28 by AnebodaSlatorp
Fun times
on 1. August 2026, 22:32 by fishsaltyak
Thank you, this was so much fun!!!!!
58 minutes here, probably wasn't needed, but I went with some coloring to get it done.
on 31. July 2026, 18:44 by bugcat
stunning, LOVE the way the logic builds through the solve
on 31. July 2026, 05:42 by pmays123
Very smooth and fun. Thanks!
on 30. July 2026, 20:44 by KelleyCook
Wow. Awesome puzzle.
You took Jobo's idea to a another level.
on 30. July 2026, 19:11 by yuripuppies
Really fun puzzle and new constraint type, I hope it catches on!
on 29. July 2026, 22:24 by Ramez
CtC Simon will have a lot of fun with this puzzle :)
on 29. July 2026, 14:06 by highonlife
Lovely Puzzle
on 28. July 2026, 22:08 by blackjackfitz
Huzzah!
on 28. July 2026, 17:10 by Franjo
Thank you very much for creating and sharing another brilliant puzzle.
on 28. July 2026, 09:52 by Snookerfan
Very nice and quite tricky, thanks!
on 28. July 2026, 03:28 by Atticus837
A great constraint idea by Jobo, and a wonderful execution by Marty! The use of fog to obscure the length of the lines is ingenious, and the way that revealing the grid restricts both types of line differently is fascinating.
on 27. July 2026, 20:12 by wuc
Great fog puzzle swinging between easy steps and tricky steps. 3* to me too. Great fun thx.
on 27. July 2026, 20:10 by GeorgeTheToad2
Thank you Marty, 3* difficulty for me.
on 27. July 2026, 19:50 by chinesemaster
Trying to understand how this is only at 90% rating right now
on 27. July 2026, 19:25 by gwai77
Tricky and nice!Thanks,Marty!
on 27. July 2026, 18:12 by mscha
Very nice ruleset and puzzle!
This puzzle built up nicely, with an easy break-in and gradually getting trickier (but not really difficult).
on 27. July 2026, 16:52 by Jobo
Very nice puzzle, great application of these lines! They work really well with the fog. Thanks for the puzzle, Marty.
on 27. July 2026, 16:31 by ShuffBeeeell
Enjoyed the rule set, will check out the High Bars puzzle. Thanks!
on 27. July 2026, 16:09 by Joven
Marvelous as usual, Marty! Thanks for the wonderful puzzle!
on 27. July 2026, 15:58 by sujoyku
Thank you for this awesome puzzle, Marty!
| Difficulty: | ![]() |
| Rating: | 96 % |
| Solved: | 430 times |
| Observed: | 1 times |
| ID: | 000U2L |
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