Kyu Exercise 137 / Attempts
![[Diagram]](../../diagrams/44/8575b7bade9d86886ae9c129e125f2d6.png)
It's the only move
If B doesn't play at a, W taking it will have an eye in the corner and since the two black stones on the edge can't escape, the second eye under them.
![[Diagram]](../../diagrams/40/6ea628f23fbcf6f3696f1b1b44215e7c.png)
W can't ignore
W can't ignore
else he doesn't have enough space for two eyes.
![[Diagram]](../../diagrams/52/90b22d6228af25e9b8da2c845afc176e.png)
W can't ignore
But preventing Black from taking the 2 stones in the corner also leaves him with dead shape.