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Subject: Re: Test position === Fischer vs Stein, 1967 Sousse Interzonal

Author: Ernst Walet

Date: 11:28:34 12/19/02

Go up one level in this thread


On December 19, 2002 at 14:08:56, John Merlino wrote:

>On December 19, 2002 at 12:23:09, José Antônio Fabiano Mendes wrote:
>
>>         Fischer vs Stein, 1967 Sousse Interzonal
>>  [D]3q3r/4b1k1/4P1p1/rpp2p1p/1nn2Q2/5N1P/P4PP1/RBB1R1K1 w
>>  And here Fischer played 29. Bxf5, a move that baffles me.
>>  Please see ==> http://www.mark-weeks.com/chess/67fs07.htm
>
>CM9000, on a P3-733, doesn't get it either:

But shure it does, given some more time :)

Time	Depth	Score	Positions	Moves
0:01	1/5	-0.77	145883		1.a3 Bf6 2.e7 Qe8 3.Ne5 Qxe7
0:01	1/5	-0.36	158459		1.Nd2 Nd5 2.Qg3 h4 3.Qd3
0:01	1/6	-0.20	216927		1.Nd2 Bf6 2.Nxc4 bxc4 3.e7 Qc8
					4.Re5 Bxe5 5.Qxe5+ Kh7
0:03	1/7	-0.55	451357		1.Nd2 Bf6 2.Nxc4 bxc4 3.e7 Qc8
					4.Re5 Nd3 5.Bxd3 cxd3
0:07	1/7	-0.31	951025		1.Ng5 Nd3 2.Bxd3 Qxd3 3.Nf7 Qc3
					4.Bb2 Qxb2 5.Nxh8 Rxa2 6.Rxa2 Qxa2
0:10	1/8	-0.35	1319790		1.Ng5 Qd4 2.Qxd4+ cxd4 3.Nf7 Rc8
					4.Bh6+ Kh7 5.Bf4 Nd5
0:16	1/8	-0.30	2122091		1.Nd2 Bf6 2.Nxc4 bxc4 3.e7 Qd7
					4.a3 Bxa1 5.axb4 cxb4 6.Qxc4 Bc3
0:31	1/9	-0.27	4216013		1.Nd2 Bf6 2.Nxc4 bxc4 3.e7 Qe8
					4.a3 Bxa1 5.axb4 cxb4 6.Qxc4 Bc3
1:18	1/10	-0.69	10961745	1.Nd2 Nd5 2.Qf3 Bf6 3.Nxc4 bxc4
					4.Rd1 Bd4 5.Bb2 Bxb2 6.Rxd5 Bxa1
					7.Rxd8 Rxd8
3:39	1/10	-0.45	31113879	1.Ng5 Qb8 2.Nf7 Qxf4 3.Bxf4 Rha8
					4.Ne5 Na3 5.Nd3 Nxb1 6.Nxb4 cxb4
					7.Raxb1 Rxa2
6:19	1/11	-0.59	53630789	1.Ng5 Qb8 2.Rd1 Qxf4 3.Bxf4 Rd8
					4.Rd7 Nd5 5.Bc1 Ra6 6.h4 Rd6
9:45	1/11	-0.49	84426688	1.Nd2 Bf6 2.Nxc4 bxc4 3.e7 Qe8
					4.a3 Ra4 5.Ra2 Nxa2 6.Bxa2 Ra7
					7.Bxc4 Rxe7 8.Be3
17:53	1/12	-0.67	156770033	1.Nd2 Nd5 2.Qg3 Bf6 3.Nxc4 bxc4
					4.Rd1 h4 5.Qf3 Bd4 6.Bb2 Bxb2 7.Rxd5
					Bxa1 8.Rxd8 Rxd8
25:01	1/12	0.00	221344707	1.Bxf5 gxf5 2.Qg3+ Kh7 3.Ng5+ Bxg5
					4.Bxg5 Qb8 5.Bf4 Qe8 6.Qg5 Nc2
					7.Qh6+ Kg8 8.Qg5+ Kh7
39:54	1/13	0.00	359897432	1.Bxf5 gxf5 2.Qg3+ Kh7 3.Ng5+ Bxg5
					4.Bxg5 Qb8 5.Bf4 Qe8 6.Qg5 Nc2
					7.Qh6+ Kg8 8.Qg5+ Kh7

Ernst

>
>Time	Depth	Score	Positions	Moves
>0:00	1/4	0.06	10238		1.Ne5 Nd5 2.Qg3 Nxe5 3.Rxe5
>0:01	1/5	-0.97	46293		1.Ne5 Bd6 2.Bxf5 Qf6 3.Bxg6 Bxe5
>0:02	1/5	-0.77	145883		1.a3 Bf6 2.e7 Qe8 3.Ne5 Qxe7
>0:02	1/5	-0.36	158459		1.Nd2 Nd5 2.Qg3 h4 3.Qd3
>0:03	1/6	-0.20	216927		1.Nd2 Bf6 2.Nxc4 bxc4 3.e7 Qc8
>					4.Re5 Bxe5 5.Qxe5+ Kh7
>0:06	1/7	-0.55	451357		1.Nd2 Bf6 2.Nxc4 bxc4 3.e7 Qc8
>					4.Re5 Nd3 5.Bxd3 cxd3
>0:13	1/7	-0.31	951025		1.Ng5 Nd3 2.Bxd3 Qxd3 3.Nf7 Qc3
>					4.Bb2 Qxb2 5.Nxh8 Rxa2 6.Rxa2 Qxa2
>0:18	1/8	-0.35	1319790		1.Ng5 Qd4 2.Qxd4+ cxd4 3.Nf7 Rc8
>					4.Bh6+ Kh7 5.Bf4 Nd5
>0:28	1/8	-0.30	2122091		1.Nd2 Bf6 2.Nxc4 bxc4 3.e7 Qd7
>					4.a3 Bxa1 5.axb4 cxb4 6.Qxc4 Bc3
>0:55	1/9	-0.27	4217595		1.Nd2 Bf6 2.Nxc4 bxc4 3.e7 Qe8
>					4.a3 Bxa1 5.axb4 cxb4 6.Qxc4 Bc3
>2:18	1/10	-0.69	10944478	1.Nd2 Nd5 2.Qf3 Bf6 3.Nxc4 bxc4
>					4.Rd1 Bd4 5.Bb2 Bxb2 6.Rxd5 Bxa1
>					7.Rxd8 Rxd8
>6:29	1/10	-0.45	31157865	1.Ng5 Qb8 2.Nf7 Qxf4 3.Bxf4 Rha8
>					4.Ne5 Na3 5.Nd3 Nxb1 6.Nxb4 cxb4
>					7.Raxb1 Rxa2
>
>If I force Bxf5:
>
>Time	Depth	Score	Positions	Moves
>0:00	1/3	-1.30	5438		1...gxf5 2.Qxf5 Qf8 3.Qe4 Qf6 4.Bg5
>0:00	1/4	-1.30	11342		1...gxf5 2.Qxf5 Qf8 3.Qe4 Qf6 4.Bg5
>0:00	1/5	-1.20	53161		1...gxf5 2.a3 Qf8 3.Bd2 Rxa3 4.Rxa3
>					Nxa3
>0:02	1/6	-1.37	170541		1...gxf5 2.Qxf5 Qf8 3.Qe4 Bf6 4.Rb1
>					Qe7 5.a3 Nxa3
>0:06	1/7	-1.18	487774		1...gxf5 2.a3 Bf6 3.Qg3+ Kh7 4.Ng5+
>					Bxg5 5.Bxg5 Qd4 6.Qc7+ Kg6
>0:14	1/8	-0.75	1133699		1...gxf5 2.a3 Nd5 3.Qxf5 Bf6 4.Bg5
>					Bxg5 5.Nxg5 Rxa3 6.Rxa3 Nxa3
>0:48	1/9	-0.94	3923438		1...gxf5 2.a3 Nd3 3.Qxf5 Nxc1 4.Raxc1
>					Qf8 5.Qb1 Qf6 6.Rcd1
>2:28	1/10	-0.79	12123749	1...gxf5 2.a3 Nd3 3.Qxf5 Nxc1 4.Raxc1
>					Qf8 5.Qb1 Qf4 6.Rcd1 Rxa3 7.Qxb5
>8:35	2/11	-0.48	42050761	1...gxf5 2.Qxf5 Qf8 3.Qe4 Bf6 4.Nh4
>					Qe8 5.Nf5+ Kg8 6.e7 Ra6 7.Rb1 Bc3
>					8.Rd1 Kf7 9.a3 Nxa3
>
>jm



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