Locally speaking this ripped keima is very bad for White: the stones and cannot help each other at all.
White must have some extremely good reason to allow here. Mostly White should answer at , founded on basic instinct.
It is conceivable that White might want instead to treat as a sacrifice, with and here.
This is from six good and six bad shapes.
- Cutting right through a knight's move is very big (ripped keima)
- BQM 23
- Ripped keima in L’ame du Go
- How To Play Go, Lesson 4, Section 4.5