Think inside the...
(Published on 10. October 2025, 15:11 by KMD)
Hello, Kennet's Dad here with a new installment. I hope you like it.
SUDOKU
Normal sudoku rules apply.
No two adjacent digits in the grid may sum to 10.
Killer Cage: digits in a gray box cannot repeat.
DYNAMIC FOG
There is some fog in the grid; placing a correct digit might remove it. No guessing is required.
BOX VALUE LINES
There are lines in the grid that connect boxes; the digits in a box are summed to arrive at a value. That value applies to the following rules:
1) Zipper: when box values equidistant from the center box on a pink line are summed together, they are equal to the center box's value on that line. The center box is notated by a pink circle.
2) Modular: every run of three boxes on a teal line must have one value from each; 0 mod(3), 1 mod(3), and 2 mod(3).
3) Renban: Box values on a purple line make up at a set of consecutive, non-repeating values.
4) Sum Lines: The box values connected by a blue line must be the same.
5) Consecutive pairs: box values joined by a white dot have a difference of 1.
Solution code: Row 1, left to right
Comments
on 15. November 2025, 21:47 by Ramez
This is an amazing puzzle with interesting deductions in every turn. It deserves 100% rating. Thank you for setting and sharing this beautiful sudoku.
Thank you :)
on 11. November 2025, 19:52 by Djirt
Спасибо за эту жемчужину!) Потрясающая конструкция с великолепной логикой!)
Thank you!
on 11. November 2025, 14:06 by bboom
Fun mechanic! Some parts did feel a bit grindy to eliminate the options, but it is quite possible I missed some logic that would've made it smoother.
Also the color-swap between the normal renban and zipper colors threw me off for a bit at the start.
on 9. November 2025, 22:51 by Fool on Hill
Astonishing construction - loved the logic and the flow. Way underrated at 80% (as I record this)
Thank you for the comment.
on 13. October 2025, 02:01 by Mares123
This one is a true beauty! The break in is geometrically so pleasing. A bit of set theory, a bit of module thinking, geometry etc…
Thank you so much! I appreciate it.
on 10. October 2025, 18:30 by Snookerfan
Brilliant puzzle with a magnificent break-in! Thank you
Glad you liked it, thanks.
on 10. October 2025, 16:30 by War
Excellent masterclass break-in, great use of ruleset and geometry. I wasted a lot of time staring at the puzzle because I forgot the Anti-X constraint haha. Overall great puzzle
A wonderful comment, thank you.
