Systematic Joseki 4-4 3-3 3-4 4-3
Summary - Joseki - San san under Hoshi in a general case.
White continues making room for life...
Black is now strong enough to press even lower by playing at a.
Q. What happens if Black at b instead of a?
A. This would be a mistake; allowing White c is too good. I don't know if d for e should be exchanged first - Black could try this:
![[Diagram]](../../diagrams/17/9ead35029d4b9958aee31c258a066ac5.png)
which a for 11?