Schachus wrote:Nice:)
Can you now tell me, why you think the fist non-sente play would be obvious!? I could have thought for hours, I would not have come up with the thinking that the larger threat at the end of the corridor is decisive, even if its much farther away
Yes, for those who don't know the secret, the first play is counterintuitive. I remember being surprised, myself.
After all, given a choice of sente of the same size with no kos around, it is obviously right to choose the sente with the largest threat. (At least for simple threats.
) So with a choice of corridors (and other such situations) with distant sente, it also makes sense to choose the one with the largest threat. But if you have read
Mathematical Go, you know the secret that this problem illustrates, and you know that you choose the one with the smallest threat. A quick glance reveals that the T-13 corridor has the smallest threat at the end.
I don't always play in corridors with distant sente,
but when I do,
I start in the one with the smallest threat.
