Ladder
(Eingestellt am 13. Januar 2025, 20:51 Uhr von zetamath)
Normal sudoku rules apply.
Standard rules for ten lines (gray), renban (purple), nabner (gold), German whispers (green), entropic lines (orange) and black dots (black) apply. In addition to color, each line has been labeled for clarity.
There are no negative constraints of any kind.
Ten Lines: Digits along gray lines must be broken into one or more contiguous groups of cells that add to ten. Such groups cannot overlap. Digits may repeat within such sums if allowed by other rules. For example, 513173 is a valid fill for a length 6 line, because it can be broken into 5131 and 73, each of which sum to 10.
Entropic Lines: Any set of three sequential cells along an entropic line must contain a low digit (1-3), middle digit (4-6) and high digit (7-9). Digits may repeat on a line, if allowed by other rules.
Renban Lines: The purple line in the grid is a Renban line. Digits on a renban form a set of non-repeating, consecutive digits in any order.
Nabner Lines: Digits do not repeat along gold nabner lines. Additionally, no pair of digits anywhere on a nabner line can be consecutive.
German Whispers: Along green lines, adjacent digits must differ by at least 5.
Black Dots: Digits separated by a black dot have a 1:2 ratio, meaning one is exactly double the other. Not all dots are necessarily given.
Have fun, leave a comment if you enjoy the puzzle!
PS: I stream solving sudoku like puzzles three days a week. You can check out the channel, as well as some videos I have made about setting puzzles, at my YouTube channel here.
Lösungscode: Column 1
Kommentare
am 23. Januar 2025, 12:03 Uhr von rhodri
Just exquisite
am 18. Januar 2025, 12:57 Uhr von Rrijmers
The ruleset makes this puzzle seem very hard, but it's really not. It has an incredible flow to it, with one deduction immediately leading to the next. Almost like a fog puzzle. Thanks Zeta!
am 17. Januar 2025, 16:55 Uhr von RobotChicken
Loved the break in and how the lines played with each other! I admit I got stuck for a while after 3/4 complete, but after seeing one digit, everything fell into place.
am 17. Januar 2025, 02:01 Uhr von Ragna
Such a wonderful puzzle! Thank you. :-)
am 17. Januar 2025, 00:15 Uhr von novato
Very enjoyable puzzle!
am 16. Januar 2025, 21:02 Uhr von briansometimes
Bloody brilliant, thanks
am 16. Januar 2025, 19:09 Uhr von GeorgeTheToad2
Super puzzle. Thank you.
am 16. Januar 2025, 18:09 Uhr von OGRussHood
Genius, as always!
am 15. Januar 2025, 19:06 Uhr von nunc
Very beautiful from the beginning to the end!
am 15. Januar 2025, 16:48 Uhr von PinkNickels
Incredible setting. Bravo.
am 15. Januar 2025, 11:25 Uhr von 9Rookienumbers
flawless
am 15. Januar 2025, 10:01 Uhr von Snookerfan
Beautiful, class(ic) Zeta-puzzle! Thank you
am 15. Januar 2025, 05:51 Uhr von greyhathero
Beautiful break-in! Doesn't end there though, Had to crunch all the way through
am 15. Januar 2025, 00:47 Uhr von kikanya
it was very hard for me, but i did it. great puzzle!
am 15. Januar 2025, 00:18 Uhr von prodigis
Solving this is like a beautiful dance
am 14. Januar 2025, 22:23 Uhr von antiknight
Loved the break-in and that renban in B1! Great puzzle!
am 14. Januar 2025, 20:28 Uhr von glum_hippo
TEN-riffic!
NAB-ulous!
ENT-irely delightful!
GW-ood job!
REN-thralling!
[Thanks glum! Great to hear from you! - z ]
am 14. Januar 2025, 19:34 Uhr von Calvinball
This is peak Zeta doing Zeta things, some of my favorite kinds of things.
am 14. Januar 2025, 18:26 Uhr von Titus Adduxas
Another gorgeous puzzle from Zetamath. I too struggled with the break in but finally spotted the gorgeous intended logic.
am 14. Januar 2025, 17:45 Uhr von wuc
Great but hard puzzle. 3.5* for me. Very rewarding. Great setting thx.
am 14. Januar 2025, 14:57 Uhr von leemsa
Lovely puzzle!!
am 14. Januar 2025, 14:18 Uhr von Playmaker6174
The master of lines weavering has done it again, but no chance in hell this kind of flow is at 3/5 diff lol, it’s more like solid 4/5 for me.
Still, lots of juicy interactions throughout the solve, I had plenty of fun at the end x)
am 14. Januar 2025, 13:11 Uhr von davidemsa
That was very nice. I specially liked the way the break in works out.
am 14. Januar 2025, 12:01 Uhr von echidna
Loved it—incredible puzzle with many beautiful and subtle deductions!
am 14. Januar 2025, 11:38 Uhr von polcat
Wow! ❤️
am 14. Januar 2025, 11:22 Uhr von mihel111
Classic Zetamath. Well done Sensei.
am 14. Januar 2025, 10:53 Uhr von Big Tiger
Hmm, nope, I broke this one and can't figure out how or where.
am 14. Januar 2025, 05:14 Uhr von rictech
That was excellent! Every digit required thought and logic that came from multiple rules, all the way to the end. Masterfully set. Thanks!
am 14. Januar 2025, 01:15 Uhr von etoler
That break-in broke my brain, but I loved it! (I also got there the hardest way possible, but I spotted the more elegant version eventually.)
I also think this is the most intuitive solution I've seen for the accessibility issues with these puzzles. I'd love to hear thoughts from someone who has some amount of color blindness, but speaking as someone who doesn't, I still appreciated having the abbreviations present to help keep everything straight in my brain.
am 13. Januar 2025, 23:52 Uhr von ViKingPrime
I'm a big fan of mixed rulesets and this is one of the best of them. The digits almost sing, with a small but delightful discovery every few moments.
am 13. Januar 2025, 23:27 Uhr von Chaka
A classic Zetamath puzzle: The break-in, the combination and positioning of clue types, everything is so well thought-out and every deduction feels really earned. Thanks again for a wonderful Sudoku, I hope to see more of you soon!
am 13. Januar 2025, 22:24 Uhr von applesauce
Smooth & enjoyable from start to finish. Thanks for another great puzzle!
