[Computer-go] semeai example of winning rate

[Stefan Kaitschick]

Two very cool examples that you've built. Congrats. That much have been 
a lot of work.
The bots will have something to chew on here. I think a little too much 
to chew on, actually. :-)
It looks to me like a special exercise in humility for go programmers.
Shouldn't especially designed 9*9 problems be bad enough at this point?

Stefan

Am 17.01.2011 12:02, schrieb Aja:
> Dear all,
>
> I designed another example using winning rate. The correct winning 
> rate of Black should be 100%. This position is explained in the 
> following.
>
> The correct result for this position is Black wins 1.5 points by 
> Chinese scoring.
>
> [LEFT, all BLACK's WIN]
> Bottom-left: inspired from the game of pachi. Black has to "connect" 3 
> times to atari white group, to win the semeai.
> Top-left: a basic "connect to atari" inspired from Magnus' example.
> Center-left: a basic 3-liberties semeai.
>
> [RIGHT, all WHITE's WIN]
> Bottom-right : inspired by Mogo's example, a basic 4-liberties semeai.
> Top-right: the most difficult one for computer Go, in my view. 
> Basically, to win the semeai, White has to self-atari many stones and 
> several times.
> Center-right: White has to connect to avoid being captured.
>
> Trick:
> I design a trick for the N3 group. If Black plays at N4, White must 
> capture it immediately, or White will fail in the semeai of the right 
> side.
>
> They are all very difficult semeai. But to reach high dan, I think we 
> have general solutions.
>
> Aja
>
>
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