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[gnugo-devel] Leftd game and minor tuning

From: bump
Subject: [gnugo-devel] Leftd game and minor tuning
Date: Fri, 29 Nov 2002 07:29:03 -0800

This slight generalization of one pattern fixes an error
in leftd-gnugo-3.3.12-200211290140.sgf. After move 102
GNU thinks the B group in the lower rigth is alive
because a half eye is hallucinated around O5.

The game leftd-gnugo-3.3.12-200211290140.sgf is well worth
looking at. GNU plays badly until move 156, when W must have
thought he had a won game. After that B plays extremely well
for a spectacular win.

Moves 26, 120 and 126, among others, are serious errors that 
need looking at. The last two especially look like bugs.


Index: patterns/owl_attackpats.db
RCS file: /cvsroot/gnugo/gnugo/patterns/owl_attackpats.db,v
retrieving revision 1.66
diff -C5 -u -r1.66 owl_attackpats.db
--- patterns/owl_attackpats.db  12 Nov 2002 13:41:55 -0000      1.66
+++ patterns/owl_attackpats.db  29 Nov 2002 15:22:39 -0000
@@ -2218,17 +2218,17 @@
 Pattern A701
 ?XOo        make atari
 Pattern A702

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