Basically if the top left corner of a 4 in 3x4 in a corner like this is unshaded, the 2x3 part I marked can never have a three, hence the subdivision I thought the subdivision didn't influence much to the difficulty but I'm probably wrong ;-;

0:50 On And On!!

On and on, 0:50

Essentially it’s like this

Supplimentary Exercise 1 Difficulty: 2/5 Miaou pzv.jp/p.html?herugolf/10/10… #ヘルゴルフ作問基礎

Therefore R4C5 is unshaded and we reach the first photo. A hidden 2x3 3 is formed. If the 3 faces the right (meaning the hole in the middle is facing the right), by river theory the region is dead. Therefore we reach the second photo and the rest is left as an exercise.

Y'all definitely need some heyawakes puzz.link/p?heyawake/10/10/9…

Question 50 Difficulty:2/5 puzz.link/p?heyawake/10/10/1… Someone called Ogorota made this xitter.cf/DesolateDomain/status/…

Hm pretty un-unique I see