Gokyo Shumyo, Section 4, Problem 7 / Solution
![[Diagram]](../../diagrams/26/c02ffbed97f1ede914532b1b51ff72c0.png)
Solution: ko
is the point. White has a stubborn defense
threatening a throw-in at
. Ko is the solution (Black may play
at
making an outside ko). Other defenses all fail...
![[Diagram]](../../diagrams/13/a2f488cc141bb26bf03a3197a41eb84e.png)
White attack from outside
is an often-seen sacrifice cut to gain a liberty.
![[Diagram]](../../diagrams/21/8e1b95b41ba1a56d5e9c874fde6754c4.png)
White attack from inside