Re: [gnugo-devel] Semeai weirdness.

[Arend Bayer]

Dan wrote:

> >Part of the complexity of the function is caused by the fact that a dragon
> > may be involved in several semeais. We need to collect results for the
> > different semeai, analyze this information, then update statuses.
>
> Another point is that this information is not really sufficient
> to update the statuses correctly.
>
> Suppose that dragon A is involved in semeais against dragon B and
> dragon C and that both semeai are critical.
>
> Is dragon A alive, dead or critical?
>
> All three cases are possible. If A wins the semeai with B
> and A is to move, yet if it takes a lot of moves to remove B
> from the board, A may lose the second semeai and A is dead.
> On the other hand if B has fewer liberties, A may be alive.

I don't understand. If capturing B is not sufficient to live, then
surely owl_analyze_semai(A, B) should not report that A lives by winning
the semeai against B?

Arend