Sadaharu: After S4 Atari, why need to play t2 first?
Blocking straight at p2 should work too.
Also after the block at p2, if t2s3 is exchanged hane directly at q1 doesn’t work because black can connect at q3.
d4rkm4tter: Oh wow, right. So the correct solution is to not exchange the t2 before q1.
Oh wow, right. So the correct solution is to not exchange the t2 before q1.