Double Double Trouble
(Published on 20. January 2026, 16:29 by WEBthe3rd)
This puzzle was inspired by Cross-ki by rhyrhy
Rules:Normal sudoku rules apply.
Dynamic Fog - The grid is covered in fog. Correctly entering a digit will clear the fog in that cell and potentially others. No guessing is required.
Kropki Dots - If two cells are separated by a white dot, the digits are consecutive, and if two cells are separated by a black dot, one digit is double the other. Not all dots are necessarily given.
Diagonal Kropkis - If a Kropki dot is located on a vertex between four cells, it applies to both diagonal pairs.
Killer Cages - Digits in a cage do not repeat and must sum to the number given in the top left corner of the cage.
Solution code: Row 9
Comments
on 23. January 2026, 13:56 by dingdongeu
Really liked the pattern work on this one. Some fun and enjoyable logic.
on 22. January 2026, 21:52 by VitP
that's 3 in the corner, claiming its pozition
on 22. January 2026, 20:11 by Ganbatte
I enjoyed this puzzle. Took me longer than usual for a one-star puzzle but I think it’s the correct rating because I was able to solve it. Thanks for creating it!
on 22. January 2026, 06:34 by Ganbatte
I enjoyed this puzzle. Took me longer than usual for a one-star puzzle but I think it’s the correct rating because I was able to solve it. Thanks for creating it!
on 21. January 2026, 17:18 by Ragna
Fun puzzle! Thank you. :-)
on 21. January 2026, 14:29 by rojspencer
That went from very easy to where did I leave my crayons? Enjoyed it. :)
on 21. January 2026, 02:42 by RussKozerski
Felt like I was having to think in new ways. Not sure about the 1-star rating, but definitely 5-star fun.
on 20. January 2026, 22:19 by dzamie
A very pretty starting grid! I also really liked the dots in box 1.
on 20. January 2026, 20:18 by Myfyr MJ
Lovely
on 20. January 2026, 19:51 by PinkNickels
Fun end game!
