Another alternate move. On problem 108 it seems that a2 works, although it looks inferior. A2, a3, g1, h1, a4, and if white cuts at b4, black captures and white has no ko threats. If white doesnt answer at h1, black can live in the corner and white cant live on the left.
Gunnar, does this look correct? David > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:computer-go- > [EMAIL PROTECTED] On Behalf Of Gunnar Farnebäck > Sent: Tuesday, April 22, 2008 12:20 PM > To: computer-go > Subject: Re: [computer-go] Test position set for MC programs > > Yamato wrote: > > Gunnar Farnebäck wrote: > >>>> 143: I don't see how A3 could win the semeai. A2 and C4 look more > >>>> effective. > >>> Typo, it was A2. C4 cannot work. > >> How does white defend against C4? I'm looking at B C4, W B4, B B5, > >> W B6, B A2 without finding a way out for white. Did I miss > something? > > > > Oh, I see... > > I quoted this problem from a book, but it did not mention C4. > > If C4 works, it is not a good test, then I modify it a little. > > > > I attached the fixed version to this email. Thanks for your help. > > One more correction. The fixed version added B1 as a correct move in > 113, but that point is occupied. > > GNU Go 3.7.12 results for the fixed version: > > GNU Go 3.7.12 level 0 : 24/50 > GNU Go 3.7.12 level 10 : 34/50 > GNU Go 3.7.12 level 15 : 37/50 > GNU Go 3.7.12 mc, 1k : 30/50 > GNU Go 3.7.12 mc, 10k : 31/50 > GNU Go 3.7.12 mc, 100k : 38/50 > GNU Go 3.7.12 mc, light, 1k : 33/50 > GNU Go 3.7.12 mc, light, 10k : 30/50 > GNU Go 3.7.12 mc, light, 100k : 25/50 > GNU Go 3.7.12 mc, mogo, 1k : 34/50 > GNU Go 3.7.12 mc, mogo, 10k : 33/50 > GNU Go 3.7.12 mc, mogo, 100k : 35/50 > > /Gunnar > _______________________________________________ > computer-go mailing list > computer-go@computer-go.org > http://www.computer-go.org/mailman/listinfo/computer-go/ _______________________________________________ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
