The key thing in this problem is not to connect in response to the atari. Rather, White should connect underneath with
and
, keeping the
group safe and hence killing the entire Black group. If
at
, then White plays at
instead.
The rather funky-looking is a step in the right direction, but not the solution.
and
can create a throw-in ko.
ProtoDeuteric: If it is not to imposing of me, would you please give me the credit for this solution? I put the exact solution sequence on the attempts page before you created the solution page.
tapir: I like that this is a beginner exercise, it's not sooo easy :)