Rules:
Normal Sudoku rules apply.
The grid is covered in dynamic fog. Putting a correct digit in the grid will clear that space and possibly other spaces in the fog.
Little Killers - Digits outside of the grid shows the sum of the digits along that diagonal within the grid.
Killer Cages - Digits inside a killer cage add up to the value in the top left corner of the cage. Digits may not repeat in the cage.
White Kropki Dots - Digits connected by a White Kropki Dot are consecutive. Not all dots are given.
Black Kropki Dots - Digits connected by a Black Kropki Dot have a ratio of 1:2. One is double the other. Not all dots are given.
Thermometers - Digits along a thermometer increase in value starting from the bulb.
German Whispers - Adjacent digits along a Green German Whisper line must have a difference of value of at least 5.
Dutch Whispers - Adjacent digits along an Orange Dutch Whisper Line must have a difference of value of at least 4.
Renban Lines - Digits along a Purple Renban Line are a set of consecutive digits in any order.
Arrows - Digits along an arrow sum to the digit in the attached circle.
Solve on SudokuPad
Solution code: Column 9, all digits from top to bottom.
on 8. December 2025, 22:38 by dzamie
Neat puzzle. I feel like the kropki dots overstayed their welcome a little, and the last kropki is entirely unnecessary - all 8 other boxes can be fully solved, which means the last one can be solved without clues.
Plus, I think the longer thermo isn't necessary; I just used normal sudoku logic for each cell, rather than doing anything with that rule.
on 8. December 2025, 04:25 by NotSoMagnifique
Great way to stay sharp!
on 7. December 2025, 19:11 by darylkay
Nice puzzle to start the day about 10 kjnutes, the only constructive criticism would be the last kropki was really used. Overall nice one!
on 7. December 2025, 10:44 by BKKGarrett
I had a lot of fun working through this. Thank you!
on 7. December 2025, 08:05 by JVA
Nice puzzle. Some boxes were revealed before the previous ones were fully filled in, which doesn't feel intentional. Also, I think the last kropki is redundant
on 7. December 2025, 03:02 by TomT
Loved it. Thank you
on 7. December 2025, 02:30 by naama
this was very nicely made
on 7. December 2025, 00:29 by faltenin
Nice little snack, thanks!