[computer-go] 19x19 Study - prior in bayeselo, and KGS study

[Don Dailey]

According to Sensei's Library,  nakade is:

 

    It refers to a situation in which a group has a single large
    internal, enclosed space that can be made into two eyes by the right
    move--or prevented from doing so by an enemy move.

Several examples are shown that where there are exactly 3 points.   My
example shows 4 empty points in a big eye but they have even bigger
examples.   

So I think this is nakade.

- Don


Jason House wrote:
>
>
> On Jan 30, 2008 2:48 PM, Don Dailey <drdailey at cox.net
> <mailto:drdailey at cox.net>> wrote:
>
>     So are you saying that if mogo had this position:
>
>     | # # # # # #
>     | O O O O O #
>     | + + + + O #
>      a b c d e
>
>     That mogo would not know to move to nakade point c1 with either color?
>
>
> That's not nakade...  Even if it was one shorter, I'd expect nearly
> all MC bots to get it right.  I think the problems come with big eyes
> and throw-ins.  Big eyes require many moves to be correctly played for
> a kill.  I can easily imagine a playout policy (expecially with
> avoiding self-atari plays) that fails to read a big eye nakade correctly.
>
>  
>
>
>
>     - Don
>
>
>     >
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