Inspired by Phistomefel's recent Roman Whispers puzzle. I thought it would be fun to look for other constraints that might have interesting interactions with the anti-XV rule.
Rules
Lösungscode: Columns 1 and 2
am 3. August 2025, 22:22 Uhr von greebug
Beautiful logic. Lots of hidden gems.
am 21. Juli 2025, 21:13 Uhr von Ant A
this was my first sudoku puzzle ever - no joke. definitely super fun and will now regularly play these more unique puzzles. took me about 2.5-3 hours from understanding the rules to applying the logic across the board - super rewarding! the trouble is that anti-XV rule; adds some nuance to how you approach filling the cells. thanks!
am 14. Juli 2025, 21:40 Uhr von StephenR
Epic puzzle for me which ended up involving a lot of colouring and lettering. I had to approach in short campaigns as I tended to spot something quickly and then stare blankly so I kept leaving it before coming back, rinse and repeat. A great ride, thanks.
am 3. September 2024, 04:59 Uhr von psams
Outstanding puzzle. I really enjoyed solving this, especially seeing the way that the Anti-XV rule introduced a curious asymmetry in the available options.
am 28. November 2023, 14:43 Uhr von GeorgeTheToad2
I watched your spotlight video on Memeristor's channel and heard you say that Roman Lockout Lines was one of your best puzzles so I gave it a go. It was hard but after about an hour of working on the logic in row 7 and boxes 1 and 2 it started to reveal it's secrets in box 7. Wonderful creation and I am surprised some of the good solvers out there have not attempted this puzzle. Hopefully, you will get a few more attempting this puzzle it deserves a bigger audience.
am 16. Oktober 2022, 17:26 Uhr von Vebby
An almighty battle, very rewarding to solve!
am 23. September 2022, 05:41 Uhr von wooferzfg
A really fun and rewarding puzzle! There was some neat logic throughout.
am 30. Juni 2022, 08:34 Uhr von Phistomefel
It is too bad that this wonderful puzzle completely escaped my attention until now. It is intricately set and offers some very cool logic to discover. Thanks a lot for setting this gem of a puzzle, Jay Dyer!
am 28. Juni 2022, 16:39 Uhr von SHERAX
2nd One To Solve it!(more than 4months after its release)This Puzzle Is Next Level Hard.
Only once you understand all logic you can solve it but you need to invent new logic to conquer this one.
The only reason I solved this was that I saw it was solved before (once) and so it is solvable. And yes again next Level puzzle!!!
Rules clarified:
Anti-XV: No two adjacent digits may sum to 5 or 10.
Adjecent means orthogonally
This is minimum Phistomefel level puzzle probably far beyond …i wonder if Simon (CTC) can solve this….