初代ぷよぷよ　拡散不定形 -DIFFUSION- - Bpuyo additional guide

About setting piece list

About setting opener field

About AI

NOMI

https://nosi-puyo.hatenadiary.jp/entry/2019/05/19/...
https://github.com/nsendoda/bpuyoai/releases

About special rule

https://www.nicovideo.jp/watch/sm36767850 (JP video)
http://924igo.blog.fc2.com/?m&no=53 (JP website)