Xuanxuan Qijing Problem 239 / Solution
![[Diagram]](../../diagrams/23/d82897b9b75d43115c7d5ece80aeaf5d.png)
Solution
After
!, the best Black can get is a one-move approach ko.
![[Diagram]](../../diagrams/0/91d81c5355f66b5b074713be438149e9.png)
Black's Resistance
![[Diagram]](../../diagrams/6/6aa604ae0c79bf7c199a9f072f98e080.png)
Cont. 1
is the move that links the black stones together to create connect and die situation.
![[Diagram]](../../diagrams/52/0b3ef6acaa602f17990c94cbd033eb1b.png)
Cont. 2
is important. Black needs another move at a to make it a direct ko. See Failure below for what happens when
is at
.
![[Diagram]](../../diagrams/20/0b3a0f5a91982078fa1e698da91c813e.png)
Failure
is an unexpected good move.
![[Diagram]](../../diagrams/5/4905eff0dd1a28a8efd0160b60dfd246.png)
Cont.
After
recaptures, the white group dies.