My daughter assisted with the design of this one - a birthday present for the most esteemed Bremster! He has posted a video solve of this puzzle, so now I bring it to all of you!
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Rules:
- Normal sudoku rules apply.
- Dutch Whispers - neighboring digits on an orange Dutch Whisper line differ in value by at least 4.
- German Whispers - neighboring digits on a green German Whisper line differ in value by at least 5.
- Renbans - the group of digits on a purple Renban line form a consecutive set in some order.
- X pairs - digits separated by X sum to 10. No negative constraint.
- Ratio Kropki - digits separated by a black dot have a ratio of 2:1. No negative constraint.
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Puzzle:
Solution code: Row 8 digits left to right
on 26. January 2026, 08:08 by abadx
Really nice logic in this one. The puzzle preserves its solidity until the end rush and it has some nice wow moments. Thanks for setting.
on 10. December 2025, 15:09 by PinkNickels
Really fun solve. Also, wasn't there a meme twitter account / personality named Baked Alaska a while ago? Sounds familiar. Thanks for sharing!
>>>NSM here - nope, no Internet personality reference! I just wanted to make a reference to a fancy dessert that would be appropriate for a birthday.
on 10. December 2025, 10:42 by philolologue
This was such a cool one to watch unfold, it kept feeling like there's no way the symmetry will be broken, and then another piece would magically open up and break a bit of symmetry in a completely different spot on the grid! So much fun, thank you! 18 minutes for me :)
>>>NSM here - thank you for the solve! This is why I enjoy setting things with my daughter - she doesn't get the math yet, but because she has a good visual sense, she sometimes sets things up that lead to fun logic.