A Go move, usually in the opening, that jumps along the side from an existing friendly stone (or wall), leaving a space between them and staying within one line of previous stone's height.

learn more… | top users | synonyms

8
votes
4answers
863 views

Second line invasion of two-space extension

The two-space extension is a very common pattern and forms a base. I've found lots of material here, and here, and elsewhere on how it cannot be cut and how to defend against various invasions. ...
13
votes
2answers
496 views

How far can you safely extend from your own wall?

When extending into what is basically open territory, how far can you extend to increase your influence/moyo, without inviting an invasion?