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[gnugo-devel] A simple blunder


From: SP LEE
Subject: [gnugo-devel] A simple blunder
Date: Sat, 02 Aug 2003 12:18:20 -0700

In the attached game, move 156, gnugo (black) played at D6, which is a self-atari position letting 5 stones being captured directly. I have also tried 3.3.18 and it also played D6. Maybe this semeai problem is too complicated. Can this kind of self-atari be prevented in the safety check?

SP Lee

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18 . . X X . O . . . . . . . . . . . . . 18
17 . . X O O . . . . . . O . O . X O . . 17
16 . X O X . O . . . X . . O X X X X . . 16
15 . X O X . O X X O . X . . O . . . . . 15
14 . . O X X X O O O . X O . . . . . . . 14
13 . X X O X O X X X X X O . . X . . . . 13
12 . O O O X O O O O X O O . . . . . . . 12
11 . . . O O O X X O O X . . . . . . X . 11
10 O X X X O X . . . X O O . . . X . . O 10
9 . X . X O X . X X . . . . . . . . X . 9
8 . X O X O X . X . . . . . . . . . . . 8
7 . X O O X . X O O O . . . . . . . . . 7
6 . . O . X X O O . X . . . . . . . . . 6
5 . . . O X O O X X . X X . . . . X . . 5
4 . O O X O O X O X X O X O . . X . . . 4
3 . . O X X X X O O O O O X X . . . . . 3
2 . O X X . X O O X . O X . . . . . . . 2
1 . . O . X X O . X O . . X . . . . . . 1
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