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Subject: Re: Positional testposition

Author: John Merlino

Date: 12:07:47 12/12/02

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On December 12, 2002 at 14:01:55, Gian-Carlo Pascutto wrote:

>[D]rnbq1k1r/1p1nb3/p2pp2p/6PQ/4P2B/2N5/PPP3PP/R3KB1R w KQ - 0 13
>
>From Tim Krabbe's site: Bb5!
>
>--
>GCP

Chessmaster 9000, on a P3-733, finds it in 1 second, loses it at 25 seconds, and
gets it back at 2:19. It still gives Black about a half-pawn advantage. Of
course, on a top-end computer, another depth or two could give quite different
results in this double-edged position....

Time	Depth	Score	Positions	Moves
0:00	1/3	-0.31	4268		13.Bxa6 Ne5 14.O-O+ Kg8
0:00	1/4	-0.63	9097		13.Bxa6 Ne5 14.O-O+ Kg8 15.Bb5
					Bxg5 16.Bxg5 Qxg5
0:00	1/5	-0.34	35390		13.Bxa6 Ne5 14.Bg3 Nbc6 15.O-O+ Kg8
0:01	1/6	-0.71	67135		13.Bxa6 Ne5 14.Bb5 Nbc6 15.O-O+
					Kg8 16.Rae1 Bxg5 17.Bxg5 Qxg5
0:01	1/6	-0.60	87497		13.Bb5 Ne5 14.Bg3 Bxg5 15.O-O+
					Ke7 16.Bxe5 Qb6+ 17.Kh1 dxe5
0:03	1/7	-0.60	208575		13.Bb5 Ne5 14.Bg3 Bxg5 15.O-O+
					Ke7 16.Bxe5 Qb6+ 17.Kh1 dxe5
0:11	1/8	-1.22	904118		13.Bb5 Kg7 14.O-O Ne5 15.Bg3 Ng6
					16.Qf3 hxg5 17.Bc4 Qb6+ 18.Kh1 Qxb2
0:25	1/8	-1.19	2074905		13.Qf3+ Kg8 14.Bc4 Ne5 15.Qf5 Qd7
					16.O-O b5 17.Bb3 Nbc6
0:39	1/9	-1.09	3331036		13.Qf3+ Kg8 14.Bc4 Ne5 15.Qf5 Qd7
					16.O-O b5 17.Bb3 Nbc6 18.Rad1
1:38	1/10	-1.24	8769881		13.Qf3+ Kg8 14.Bc4 Ne5 15.Qf5 Qd7
					16.O-O b5 17.Bb3 Nbc6 18.a3 d5
2:19	1/10	-0.46	12525813	13.Bb5 Kg7 14.O-O Qg8 15.g6 Nf6
					16.Bxf6+ Bxf6 17.Rxf6 Kxf6 18.Rf1+
					Kg7 19.Rf7+ Qxf7 20.gxf7 axb5 21.Nxb5
					Rxa2 22.Nxd6 Rxb2
4:02	2/11	-0.46	22342279	13.Bb5 Kg7 14.O-O Qg8 15.g6 Nf6
					16.Bxf6+ Bxf6 17.Rxf6 Kxf6 18.Rf1+
					Kg7 19.Rf7+ Qxf7 20.gxf7 axb5 21.Nxb5
					Rxa2 22.Nxd6 Rxb2

jm



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