Bishop's net

Basic position  

In this side cross-cut pattern, Black can catch the marked stone by threatening to catch the side stones.

Basic position  

threatens to catch the side stones. catches one stone in a net. Black can be satisfied with his strong formation.

Bishop  

When White lures out her stone with , Black builds a cathedral with .

crude  

is a crude move. The ladder at a is broken and Black hasn't exploited the aji of his isolated stone.