Meta Nabner
(Published on 23. September 2025, 00:51 by marty_sears)
Rules:
Normal sudoku rules apply.
If a black dot sits between two digits, then one is double the other.
No two digits anywhere on a yellow line may be the same or consecutive.
None of the lines' totals may be the same or consecutive.
Solution code: Row 7 from left to right
Comments
on 26. September 2025, 20:45 by dzamie
A similar yet different kind of tricky to meta renbans. Took me the better part of an hour, but it was a very fun solve all the way through!
on 26. September 2025, 16:54 by ViKingPrime
Appropriately you can use meta knowledge of the setter to find your way through. Solve enough puzzles of his and you begin to develop a "marty" sense.
on 26. September 2025, 16:18 by Crusader175
Super fun!
on 26. September 2025, 12:13 by davidz32z
Wow what an interesting break in! Not sure if meta puzzles are another Marty original, but if this is the first it's a really, really clever intro to a new type of puzzle! I think it's a 3 star break in for me followed by a 2 star solve. Really fun as always!
Marty: thanks David, glad you enjoyed! There have been quite a few 'meta renban' puzzles floating around recently, so this was my spin-off of those. I haven't seen anyone else do a meta nabner puzzle yet
on 25. September 2025, 11:31 by Klausku
Very nice puzzle. The elimination marathon almost broke me. Thanks Marty!
on 24. September 2025, 14:13 by mscha
Very nice puzzle, and not too hard, once you figure out the break-in. Very Marty-esque.
on 24. September 2025, 02:54 by puzzlelad
Excellent puzzle! Started to think I was never going to break in, but then it was very smooth from there. I have to say, the break in makes this worthy of 3 or 4 stars difficulty to me!
on 23. September 2025, 18:38 by johnreid
Wow! Another great puzzle Marty! Thanks!
on 23. September 2025, 18:30 by keesh
Took me a while to get past 'uh what? how?'. But after that it was very smooth sailing. Not too hard once you get going.
on 23. September 2025, 16:39 by Atticus837
Thoroughly enjoyable from start to finish! A break-in that requires a bit of mulling over the state of the grid and the meta rule (that felt quite reminiscent of some of your pick up sticks puzzles), followed by a sequence of very satisfying deductions that play with how nabner totals work in all sorts of ways. What's the next meta-constraint, Marty? Surely there's a series in this idea...
on 23. September 2025, 13:11 by Titus Adduxas
Very enjoyable puzzle - I loved the way the number of Nabner lines made you realise what each of the totals had to be. Then it was just a question of where they were: very handy having the notepad too!
on 23. September 2025, 11:41 by Franjo
I had to do some arithmetic exercise before starting to solve this fantastic puzzle… Thank you very much for creating and sharing this lovely math gem.
on 23. September 2025, 08:42 by antiknight
Cute puzzle with nicely placed Kropki dots! Definitely a 2* at most :)
on 23. September 2025, 08:32 by Exigus
Cool ruleset and great execution. Very nice with the extra space for some notes. Thanks!
on 23. September 2025, 04:31 by vitaminz
I don’t know why I’m still amazed at how nicely you integrate and weave the sudoku logic with the other constraint logic. A wonderful construction
on 23. September 2025, 01:40 by Prof.Dori
Very nice puzzle with nice logic from start to finish, especially the opening something you would expect from marty.
on 23. September 2025, 01:05 by sujoyku
Thank you for this fantastic puzzle, Marty! As I love Nabner lines, I loved this twice as much. And the flow is just elegant. Brilliant construction!
