A Go term for playing inside another player's moyo with the intention of living or escaping.

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8
votes
4answers
864 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
1answer
578 views

Why is this corner enclosure considered to be safe against 3-3 invasion?

I have read somewhere, but unfortunately forgot where that the following enclosure is safe against the invasion at a. $$ White invades at 'a' and supposedly dies. $$ --------- $$ -........ $$ ...