around the block
(Published on 31. August 2026, 08:31 by aqjhs)
- Normal sudoku rules apply.
- Global Entropy: Every 2x2 region must have digits of all three sets 123, 456, 789.
- A digit on an arrow indicates the length of the first non descending sequence of digits seen in that direction. For example, an arrow seeing a sequence of digits →247748 will have the digit 4, and an arrow seeing a sequence of digits →912376 will have the digit 1.
See also:
Solution code: Column 2, top to bottom.
Comments
on 23. September 2026, 06:47 by CharlesK
This was a super cool combination of constraints. Not too hard but very fun
on 10. September 2026, 23:44 by sujoyku
Thank you for this nice challenge, aqjhs! Global Entropy is a constraint that I am not always enjoying most, but in the combination with the arrows it worked perfectly. Great set-up!
on 10. September 2026, 21:06 by abadx
On the top half of 2* for me. After an easy start comes a muddy mid game mixed with global entropy and arrows
on 1. September 2026, 18:29 by damo_89
2* is bang on. Approachable for both aq and global entropy.
on 1. September 2026, 16:57 by ralphwaldo1
Bit tricky to see the arrows after colouring squares, at least on phone. Nice puzzle, thanks!
on 1. September 2026, 09:42 by Snookerfan
Fun puzzle! Very nice combination of constraints. Approachable puzzle, although there are a few average steps. Thanks
on 1. September 2026, 05:07 by emoney1374
Nice puzzle!
on 31. August 2026, 20:13 by GorgeousNicko
A very interesting combination of constraints. They worked together really well.
on 31. August 2026, 18:43 by ViKingPrime
A criminally smooth break-in (and a lot more forgiving than a lot of your puzzles I've encountered! This is borderline approachable). Great stuff.
on 31. August 2026, 10:56 by Fizz
That was a lot of fun, thanks!
on 31. August 2026, 09:47 by Morphismic
Super fun rule set. Easier and more straightforward to solve than it looks at first glance.
