Any Go enthusiasts here?

[flemmings]

Way back when, sometime in 2004, paleaswater was discussing Okano Reiko's head-hurty Youmi Henjou Yawa, and said

As for the Go metaphor, I was referring to when the Dragon jade in the river flew up and woke up, and then entered a room. The title of the chapter is a Go formation -- Locking the box with a golden lock. And before that was a scene that showed the other Dragon Jade with the painting immortal and a go board showing the formation -- a square of black made against a corner, and the opponent's white piece caught in it.

English Googling tells me nothing about Go formations and their names, and I don't know what 'formation' would be in Japanese. Does anyone here have more information about formation names?