The vital point is a. Black lives (without ko) and White kills (in ko) if she plays there.
unkx80: This is a famous classical shape and if I remember correctly, the correct answer is a ko. The manga did not show any variations for this one.
See "Variation at 2" below for another possible move for Black, still leading to ko.
Please correct my flawed play? I thought this might be it, but it seems not... could someone also read out the sequence for the proper solution? Thanks!
That isn't how I would read it.
Anonymous: White goes first in this problem, not Black.