[Computer-go] semeai example of winning rate

[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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