Isofill Loop
(Published on 29. August 2026, 05:17 by mathpesto)
Rules:
Isofill: Divide the grid into 10 regions, each comprised of 10 orthogonally connected cells. Every cell in a region contains the same digit. All of the digits 0-9 appear in the grid.
Whispering Loop: Draw an orthogonal loop through the grid. The loop must not touch itself orthogonally; however, it can touch diagonally. Adjacent digits on the loop differ by 2 or less.
Arrow: Digits on cells with arrows refer to the total amount of loop cells seen (not including itself) in those directions combined.
Solve online:
Solution code: Digits on the loop in Row 7 (left to right)
Comments
on 31. August 2026, 15:56 by MagnusJosefsson
Fantastic puzzle!
on 31. August 2026, 05:46 by Chefofdeath
Wonderful puzzle! After the loop ended it felt like there was no way it would resolve. But it did :) great puzzle
on 30. August 2026, 14:14 by QuiltyAsCharged
Terrific puzzle. Very detailed. Took me quite some time to work it all out!
on 29. August 2026, 17:45 by marcmees
Incredible puzzle. Great use of the whispering loop in the construction of the regions. Thanks
on 29. August 2026, 13:27 by Snookerfan
Great puzzle! Amazing logic, thanks!
on 29. August 2026, 11:03 by Christounet
Awesome! Thanks :)
