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Subject: Re: Interesting position

Author: John Merlino

Date: 16:01:28 07/22/05

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On July 22, 2005 at 14:29:39, Côme wrote:

>In this position (fen): 3r2k1/p4ppp/2p5/Np6/7N/BP1n2PP/P1b3B1/6K1 b - - 0 23
>Can any program find b4!! -+
>The main line is : b4 Nxc6 bxa3 Nxd8 Nb4 Nf3 Nxa2 Nc6 Be4 Nfd4 Bxc6 Nxc6 a5 -+

CM9_R1 on an AMD 2500 says:

Time	Depth	Score	Positions	Moves
0:00	1/7	0.37	42930		23...c5 24.Nb7 Re8 25.Nxc5 Re1+
					26.Kh2 Ne5 27.Nf3
0:01	1/7	-0.04	86025		23...Ne5 24.Bb2 Rd1+ 25.Kh2 Nd3
					26.Bc3 c5 27.Nc6 Ne1
0:01	1/8	0.15	134761		23...Ne5 24.Bb2 Rd1+ 25.Kh2 Nd3
					26.Bc3 c5 27.Nc6 Nf2 28.Nxa7
0:01	1/8	0.06	160659		23...c5 24.Nb7 Re8 25.Bxc5 Re1+
					26.Bf1 Nxc5 27.Nxc5 Re5 28.b4 Re3
0:02	1/9	-0.11	298023		23...c5 24.Nb7 Re8 25.Bxc5 Nxc5
					26.Nxc5 Re1+ 27.Bf1 b4 28.Kf2 Ra1
					29.Na6
0:03	1/10	-0.18	583765		23...c5 24.Nb7 Re8 25.Bxc5 Nxc5
					26.Nxc5 Re1+ 27.Kh2 Ra1 28.a4 bxa4
					29.bxa4 Bxa4 30.Nf5
0:05	1/11	-0.43	1508990		23...c5 24.Nb7 Re8 25.Bxc5 Nxc5
					26.Nxc5 Re1+ 27.Kf2 Ra1 28.Ke3
					Rxa2 29.Bc6 b4 30.Nf3 Bf5
0:14	2/12	-0.50	4380178		23...c5 24.Nb7 Re8 25.Bxc5 Nxc5
					26.Nxc5 Bb1 27.a3 Re5 28.b4 Re3
					29.Nf3 Rxa3 30.Nd2 Bc2
0:29	3/13	-0.39	9277550		23...c5 24.Nb7 Re8 25.Bxc5 Nxc5
					26.Nxc5 Bb1 27.Bf1 b4 28.Bd3 Bxa2
					29.Nf5 Re5 30.Nd7 Re1+ 31.Kf2
1:07	4/14	-0.49	21915840	23...c5 24.Nb7 Re8 25.Bxc5 Nxc5
					26.Nxc5 Bb1 27.Bf1 b4 28.Kf2 Bxa2
					29.Bc4 Bb1 30.Na6 g5 31.Nf3
2:04	4/14	-0.69	41556133	23...b4 24.Nxc6 bxa3 25.Nxd8 Bxb3
					26.Be4 Nb4 27.Nf5 Bxa2 28.Ne7+
					Kf8 29.Ndc6 Nxc6 30.Nxc6 Be6 31.Nb4
2:36	5/15	-0.76	53470074	23...b4 24.Nxc6 bxa3 25.Nxd8 Bxb3
					26.Nc6 Bxa2 27.Nd4 Bc4 28.Nc2 a2
					29.Nf3 Bd5 30.Nfd4 Bxg2 31.Kxg2
					Kf8 32.Kf1
5:56	6/16	-0.90	125096052	23...b4 24.Nxc6 bxa3 25.Nxd8 Nb4
					26.Nc6 Nxa2 27.Nf3 Bb1 28.Nfd4
					Nc1 29.Nb4 a2 30.Nxa2 Nxa2 31.Nc6
					Nc1 32.Bd5

jm



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