This is the fifth puzzle of the NKSA Weihnachtskalender. It was created in the Impulswoche Mind-Benders 2025. Have fun and leave a comment.
Rules:
Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box.
Kropki pairs: Digits in cells separated by a black dot are in a "Number in the dot":1 ratio. E.g. a 3 in a black dot means, that the digits in the adjacent cells are in a 3:1 ratio (1-3, 3-1, 3-9 or 9-3).
Digits in cells separated by a white dot are consecutive. Not all dots are necessarily given.
Adjacent digits along a Dutch whispers line must differ by at least 4.
Digits on Thermos are strictly increasing from bulb to tip.
Solution code: Bottom row left to right.
on 23. November 2025, 15:32 by macintux
Enjoyed the snack greatly, thanks. Even ignoring the Dutch whispers line it only took me 15 minutes.
on 23. November 2025, 03:14 by Decapod
Note on the rules: a 3-dot would also allow 2-6 and 6-2
on 22. November 2025, 22:49 by Ritsu-chan!!
Very cool! Loved solving this ;3
on 22. November 2025, 17:54 by Ragna
Nice picture!
| Difficulty: | ![]() |
| Rating: | 93 % |
| Solved: | 180 times |
| Observed: | 0 times |
| ID: | 000Q5V |
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