Tewari Example 5
Ishida Akira, commenting on the game, said that if Black had not played , but had taken a big point himself, for White to play at 1 would have been absolute. He appealed to the following tewari diagram.
In this position the exchange, - , is bad for Black.
This example is also present in Ishida Yoshio's Dictionary of Basic Joseki, vol.3.
Before , LZ estimates Black's chances at 40%. After this exchange they drop to 30%. Most likely this is because Black sacrifices the corner, while living there is more to LZ's liking.
LZ wants to force at first, then make sabaki in the corner