Ryobane

Double hane wins race to capture  

The ryobane of and gives the Black stones an extra liberty, so that Black wins the race to capture. This is an example of the proverb, Ryobane gains one liberty.

Example 2

Double hane in sente  

This example comes from http://www2.tokai.or.jp/tuta/yose.html . is tesuji. Without the exchange, - , Black could play at .

Double hane in sente (cont.)  

And now White can play a ryo-bane in sente. (The two hane are in the previous diagram and in this diagram.)

Example 3

Double hane attack  

This example comes from http://igotyuugakusya.hp.infoseek.co.jp/11isinosikatu5.htm .

The combination of and is a ryobane. This is an example of the proverb, Eight lives.

Example 4

White double hane  

This example comes from http://www.h-eba.com/heba/JITEN/jiten1-5.html. Even with the ryobane White is dead.