I solved an arrow puzzle with a break-in similar to this, and couldn't help but take my own shot at it. Enjoy!
Rules:
Normal sudoku rules apply.
Quadruples: Digits in white circles must be present at least once in the cells the clue touches.
Arrows: Digits along an arrow sum to the number in the attached circle.
Solution code: Column 1
on 24. January 2026, 13:59 by guirigui
Indeed, was not too hard once you see it, but that took a while... 28 mins total, with 20 mins staring on different occasions!
on 21. January 2026, 07:07 by JoBerlin
@fredgruffb
I would suggest watching other people solve variant sudoku to learn more techniques! The YouTube channel "Cracking the Cryptic" does this a lot and explain the logic of every step
on 20. January 2026, 17:20 by Lithium-Ion
Wow! What a great puzzle, where the quadruple circles are used extremely clever. I enjoyed every single bit oft it.
on 20. January 2026, 09:55 by fredgruff
I see people talking about ‘break-ins’ and I think this is what I
need help with. Any tips on where to learn strategies and techniques for variant sudoku? I’ve relied on instinct, trial and error for the last 6 months or so but feel like I need to get more of an education.
on 13. January 2026, 16:39 by keenbowl
Nice puzzle, but not easy to spot the break in, I'm really surprised this ended up at 2*, that is unlike any other 2* I've solved on here so far.
on 13. January 2026, 07:25 by JoeyJoeJoe
00:49:54 for me - very nice. thank you for setting.
on 12. January 2026, 18:16 by abw
Fantastic puzzle! This was a bit of a challenge for me, speaking as a relatively inexperienced solver. 2 star rating seems appropriate based on my limited experience.
I'm glad to see (from your reply to another comment) that I found the intended break in.
on 12. January 2026, 15:10 by PinkNickels
Very cool break-in. Nicely executed.
on 12. January 2026, 12:01 by Exigus
Very nice use of the quadruples. Thanks!
on 12. January 2026, 07:37 by chis_r
Felt like a 2 star to me, definitely needed a few techniques that aren't immediately obvious. Good fun, right up to the very end!
on 12. January 2026, 03:13 by VitP
in order to qualify for level 2, there needs to be something to "bite on". here, there is nothing.
on 11. January 2026, 22:54 by baltoguy
Loved it. Just a matter of staring at it until you see.
| Difficulty: | ![]() |
| Rating: | 96 % |
| Solved: | 160 times |
| Observed: | 2 times |
| ID: | 000QSX |
Please note: The German version of this page has changed. It is possible that this page does not contain the latest information.