20x20 Feeling Squared [The largest empty suguru in the world...]
(Published on 30. August 2025, 14:44 by Jacoba)
A gigantic suguru with no given clues (with high complexity).
Rules: 1. Each region must contain all the digits 1 to the size of the region.
2. No same digit appears in any neighboring cell, not even diagonally.
The largest empty suguru in the world until now (as far as I could find) was the 9x9 from Kris van Dael on Math.Stackexchange
to solve using Penpa: Penpa Link
Rules: 1. Each region must contain all the digits 1 to the size of the region.
2. No same digit appears in any neighboring cell, not even diagonally.
The largest empty suguru in the world until now (as far as I could find) was the 9x9 from Kris van Dael on Math.Stackexchange
to solve using Penpa: Penpa Link
Solution code: Bottom row of the bottom-right grey colored 5x5 square (so 5 numbers - T16 until T20 in the picture)
Solved by Dragonslayer, Jodelbanane, puratoku, sehringdipity, Krokant, misko, r45, puzzler05, itweb, paranoid, Uhu, dogfarts, SZCrow, abed hawila, DiMono, Christounet, Tacosian
Comments
on 24. October 2025, 01:28 by DiMono
It took a while to get through, but aside from one spot it wasn't actually very difficult at all, just long. Also, I think this is the first Suguru I've ever done. Yay me!
on 31. August 2025, 18:25 by Krokant
The beginning was definitely easier than the end. Great Suguru. :)
on 30. August 2025, 17:03 by Dragonslayer
Seems that I'm the first solver! I didn't think it worth a four-star rating until I solved about 2/3 of the grid.
