Snug Between Lines
(Published on 9. September 2025, 13:00 by Allagem)
Do you hate it when your Between Lines are too loose, and all of your digits can fall out way too easily?
Do you often find yourself placing 1s and 9s in circles, only to learn nothing about the digits in between?
Well then, have I got the constraint for you!
Introducing Snug Between Lines™!
Unlike regular, loose-fitting Between Lines, Snug Between Lines hug your digits firmly in place, ensuring no wasted degrees of freedom in your circles. With our patented Snug Technology™, each circle digit is guaranteed to cozy up right next to a line digit. That's right - no gaps, no wobble, and no nonsense!
So say goodbye to floppy 1s and 9s, and say hello to a sleeker, tighter solving experience.
Snug Between Lines™: Because your digits deserve a better fit.
I hope you enjoy my new constraint, Snug Between Lines :)
Normal Sudoku rules apply.
Snug Between Lines: Digits on a line between two circles must have values between the digits in the circles. Each circle digit must be consecutive with at least one digit on the line.
For example, (2) - 7 - 3 - 5 - (8) is a valid fill for a Snug Between Line.
Note: If a circle digit belongs to more than one line, it must be consecutive with at least one digit on each line.
If you enjoy Snug Between Lines and would like to see some other puzzles featuring Snug Between Lines, check out the budding Snug Between Line series!
Solution code: Column 8
Comments
on 4. October 2025, 20:04 by eladv
In the name of my client Innovative Sudoku Solutions Ltd. (TM) ("The Client") I hereby serve you with a cease and desist demand regarding your use of the term "Snug Between Lines", any of its constituent parts, or the constraint's definition in full or in part. Your constraint violates the Client's patented constraint "Tight Between Lines" (provisional patent number 130000240 registered in the US and Japan), as well as numerous other pieces of fully-owned Intellectual Property ("Snug Nabners" and "Snug Slow Thermometers" (TM) ).
You are hereby instructed to immediately desist from using the Snug Between Lines Constraint, to add a clarification to already-published creations acknowledging the Client's ownership of this IP, and to publish an Apology Sudoku with your choice of the above constraints owned by my Client, giving full credited, no later than October 15, 2025, or my Client will be forced to take legal steps including but not limited to suing for damages, for complete possession of all infringing IP and its derivatives, and publishing its own Shame Sudoku, shaming you with its solution code.
Signed,
John Renban Esq.
Sudoku Patent Solutions Ltd.
on 12. September 2025, 06:20 by juggler
Neat! These are much nicer than normal between lines.
on 10. September 2025, 05:30 by BoneMachine
I really like the new rule. Once it clicked in my brain everything fell in to place nicely
on 9. September 2025, 23:50 by Playmaker6174
This puzzle becomes easier if one knows how to scan certain digits in this puzzle xd
on 9. September 2025, 20:29 by Ambrose
Very fresh and fun solve!
on 9. September 2025, 15:31 by mellowrobinson
Great approachable puzzle! Can't wait to be snug as a bug :)
on 9. September 2025, 14:59 by DanishDynamite
Love the constraint (and the commercial) :-)
on 9. September 2025, 13:25 by Wuschel
Very nice, I like the constraint :)
