Re: [gnugo-devel] Strong non-linear behavior?

[Gunnar Farneback]

SP Lee wrote:
> This problem comes from dniwog.tst:6
> 
> 10 . O X + . . . . . + . . . . X + X . . 10
> 9 . O . X O . . . . . . . . . . . . . . 9
> 8 . . . X O X . . . . . . . . . . O . . 8
> 7 . . O X O O . . . . . . . . . . . . . 7
> 6 . O . X X . O . . . . . . . . . . . . 6
> 5 . O X . . X . . . . . . . . . . O O . 5
> 4 . X X O . . X O O O . . . . . O . X . 4
> 3 . X O X . O O X X O . . . O . O X . . 3
> 2 . X O X . O X X . . . . . . . . O . . 2
> 1 . . . . . . . . . . . . . . . . . . . 1
>    A B C D E F G H J K L M N O P Q R S T
> 
> A semeai is going on at the lower side. White doesn't even need the tesuji 
> at g1 (as mentioned in the test) to win the semeai, K2 is enough. When white 
> has less liberty ,i.e. 3 instead of 4, the tesuji is necessary.
> 
> So I let black play first and then let gnugo play both black and white, the 
> next sequence is played:
> B:K2, W:L2, B:G1, W:J1, B:N9.

I can't reproduce this and instead get B:F1 as the last move. Can you
give a full GTP script to reproduce the problem (starting with
dniwog.sgf at move 88), alternatively an sgf with the problematic
position?

/Gunnar