Go Go Igo

Go Go Igo is the name of the Umezawa Yukari's elementary go lessons following the Hikaru no Go anime.

They can be found on Youtube - https://www.youtube.com/channel/UC6EoGXdLaD-GZBq-OqU2JNQ

In episode 69 she talks about Kyuba (Urgent Point) vs Oba (Big Point), Play urgent moves before big moves. Oba is defined as "A place that just will increase territory or decrease your opponent's territory." Kyuba as "A place you have to play at immediately."