Beginner Exercise 173 / Solution
For this problem, I will accept two answers.
makes two eyes at the bottom, because Black cannot play at a.
This solution works too. After , if Black a, then White b; if Black b, then White c as in Beginner Exercise 172.
togo: This connects the two white stones, but is one big ko threat more for Black.
invites the atari at . White can only live by fighting the ko with .