Take Two! (Fog)
(Published on 22. June 2025, 16:25 by Flinty)
Sequel Alert
I have revisited an idea I used for the puzzle Have one on me!!. I have since added a small Dynamic Fog tweak to that puzzle to help the flow.
To play the puzzle, please click the image:
Initial Setter Difficulty: 1-1.5 / 5
Normal Sudoku rules apply
Place the digits 1-9 so that they do not repeat in any row, column, or 3x3 box.
Given Twos
All 2s in the grid are given digits, if you can see a white space through the fog, that cell cannot be a 2.
Dynamic Fog
In this puzzle, correctly placed digits will reveal that cell. Some key deductions will uncover more fog.
The following common constraints are used within this puzzle:
- Arrows: Digits on an arrow sum to the number in the attached circle.
- Dutch Whisper (Orange) (D): Adjacent digits on a line differ by at least 4.
- Evens: Digits on a solid grey square are even.
- German Whispers (Green) (G): Adjacent digits on a line differ by at least 5.
- Killer Cages: Digits in a cage sum to the given total.
- Renban (Pink) (R): Digits on a line form a set of distinct consecutive digits.
- Thermometers: Digits increase from bulb to tip.
- XV: Digits separated by an X sum to 10, Digits separated by a V sum to 5.
- Zippers (Z) (Lavender/Bumped): Digits an equal distance from the bumped centre of a line sum to the number in the centre.
Hint to start
The 18 cage needs a 2, and only one cell is in the fog.
Solution code: Row 6 (left to right)
Comments
on 27. June 2025, 15:06 by davidz32z
Fun little twist on fog logic, it was a good one!
on 26. June 2025, 07:47 by JVA
This puzzle was perplexingly difficult until I realized I had clicked the link for Have one on me!!
on 24. June 2025, 00:04 by dzamie
That's a pretty neat thing to do with the fog. Nice, fun solve :)
on 23. June 2025, 23:28 by DK_48
very nice
on 23. June 2025, 22:38 by hahakayo
With the 2s constrain it is very fun and fresh puzzle. Thank you
on 23. June 2025, 21:15 by Krokant
The rule with the given twos turns this puzzle into genuine fun. :)
on 23. June 2025, 17:07 by Flinty
Tweak to the Zipper rule.
on 23. June 2025, 14:44 by AlSina
In short, fun puzzle!
on 23. June 2025, 11:05 by Martina
Very nice ruleset, I enjoyed that, thank you.
on 23. June 2025, 03:44 by Nordy
Cool idea!
on 23. June 2025, 00:12 by Myfyr MJ
Nice and enjoyable, thank you.
on 22. June 2025, 22:42 by Karitsu
Really surprising how powerful the Given 2s constraint is! Fun puzzle!
on 22. June 2025, 22:01 by damo_89
Great constraint, but does it flatmate?
on 22. June 2025, 20:31 by Gnubeutel
I'm amazed how effective given 2s and fog are together. Great idea.
on 22. June 2025, 19:29 by sujoyku
Lovely puzzle! Thank you, Flinty!
on 22. June 2025, 19:29 by cam
I like that little twist on the rules :) Nice smooth, easy puzzle. Thanks!
on 22. June 2025, 18:14 by Galc127
Very nice puzzle with clever steps.
1-1.5* indeed.
Do you intend to make a puzzle for each digit?
Flinty: Thank you. It's only taken 18 months for the sequel - haha - it's a possibility though. :)
on 22. June 2025, 17:24 by wuc
Nice puzzle. Very clever steps. To me 1.5-2*. Great fun to play thx.
Flint: Thank you wuc, I don't reply to comments often enough and yours are always noticed. :)
