[Computer-go] semeai example of winning rate

[Aja]

Hi Stefan,

Designing 19*19 problems is mainly because the board is big enough to put more examples. Or I think, yes,  9*9 should be enough. I am looking forward to the day that our programs can solve all of these problems easily. 

Aja
  ----- Original Message ----- 
  From: Stefan Kaitschick 
  To: Aja ; computer-go at dvandva.org 
  Sent: Monday, January 17, 2011 7:25 PM
  Subject: Re: [Computer-go] semeai example of winning rate


  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 



_______________________________________________
Computer-go mailing list
Computer-go at dvandva.org
http://dvandva.org/cgi-bin/mailman/listinfo/computer-go
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://computer-go.org/pipermail/computer-go/attachments/20110117/5459e139/attachment.html>