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
Comments
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.
