Result: +1 (seki)
Anonymous: What about this?
Bill: Note that does not succeed. White connects with .
Bill: If Black plays first he gets 7 points in one net play.
Bill: That means that this is a 6 point sente for White (7 - 1). And that mean that if White makes the play at the normal time, Black should not make the ko, even if he is komaster, because then he just gives up 1 point. However, if the ambient temperature is less than 5, so that White's compensation for losing the ko is less than 5 points per move, and Black is komaster, he should make the ko.
Bill: Black can make seki this way, but that is 1 point worse for him than the solution diagram.