3454 Enclosure/ Technique 3

Black resists  

denies White the classical ko.

Continuation  

is a nice placement. White dies.

Hence, White should not use this technique as a raw invasion.

Bill: It may have value as a probe.

Black goes for the kill  

makes a ko shape, but plays to kill.

After , the ladder (a) and the semeai (b) are miai.

No ladder  

If the ladder does not work, takes the corner.

But first White plays shibori on the right.

White seals the corner  

Then White seals the corner with - .

This is generally good for White. Black has lost at least one move. See tewari.

Source of variations: Enclosure Joseki by Okubo Ichigen.