Computer Chess Club Archives


Search

Terms

Messages

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

Author: John Merlino

Date: 17:38:55 02/20/06

Go up one level in this thread


On February 20, 2006 at 19:49:06, Mike Byrne wrote:

>http://chessprogramming.org/cccsearch/ccc.php?find_thread=271717
>
>Prevously, someone had speculated tha Fischer played Bxf5 due to the strength of
>Black's position, i.e., Bxf5 may be the best hope for white to score a half
>point.
>
>Crafty 20.3  agrees with that assessment.
>
>FEN: [d]3q3r/4b1k1/4P1p1/rpp2p1p/1nn2Q2/5N1P/P4PP1/RBB1R1K1 w - - 0 1
>  14	08:16	1.478.082.312	2.980.004	+0.01	1.Bxf5 gxf5 2.Qg3+ Kh7 3.Ng5+ Bxg5
>4.Bxg5 Qb8 5.Bf4 Qe8 6.Qg5 Nd3 7.Qh6+ Kg8 8.Qg5+ Kh7
>  14	11:53	2.099.664.327	2.944.830	+0.01	1.Bxf5 gxf5 2.Qg3+ Kh7 3.Ng5+ Bxg5
>4.Bxg5 Qb8 5.Bf4 Qe8 6.Qg5 Nd3 7.Qh6+ Kg8 8.Qg5+ Kh7
>  15	14:54	2.621.490,650	2.931	+0.01	1.Bxf5 gxf5 2.Qg3+ Kh7 3.Ng5+ Bxg5 4.Bxg5
>Qb8 5.Bf4 Qe8 6.Qg5 Nd3 7.Qh6+ Kg8 8.Qg5+ Kh7

The King (CM9_R1, on an AMD 2500) also agrees:

Time	Depth	Score	Positions	Moves
0:00	1/3	0.15	1896		1.Ne5 Nxe5 2.Qxe5+ Bf6
0:00	1/4	0.22	9766		1.Ne5 Nd5 2.Qg3 Nxe5 3.Rxe5
0:00	1/5	-0.86	42274		1.Ne5 Bd6 2.Bxf5 Qf6 3.Bxg6 Bxe5
0:00	1/5	-0.34	74549		1.Nd2 Nd5 2.Qg3 h4 3.Qd3
0:00	1/6	0.10	137959		1.Nd2 Bf6 2.Nxc4 bxc4 3.e7 Qd7
					4.Qd2 Qxd2 5.Bxd2 Bxa1 6.e8=Q Rxe8
					7.Rxe8
0:01	1/7	-0.47	346801		1.Nd2 Bf6 2.Nxc4 bxc4 3.e7 Qc8
					4.Re5 Nd3 5.Bxd3 cxd3
0:07	1/8	0.02	1590026		1.Nd2 Nxd2 2.Bxd2 Bf6 3.e7 Qb8
					4.Qxb8 Rxb8 5.Bf4 Rc8
0:16	1/9	-0.03	3985869		1.Nd2 Nd5 2.Qg3 Bf6 3.Nxc4 bxc4
					4.Bd2 h4 5.e7 Qd7 6.Qf3
0:40	1/10	-0.48	9874279		1.Nd2 Nd5 2.Qg3 Bf6 3.Nxc4 bxc4
					4.Bxf5 Ne7 5.Rb1 Nxf5 6.Rb7+ Ne7
					7.Bg5
1:26	1/10	-0.44	21718955	1.Ng5 Qd4 2.Nf7 Qxf4 3.Bxf4 Re8
					4.Ne5 Nxe5 5.Bxe5+ Bf6 6.Bc7 Ra6
3:37	1/11	-0.74	53991492	1.Ng5 Qb8 2.Rd1 Qxf4 3.Bxf4 Rd8
					4.Rd7 Nd5 5.Bc1 Ra6 6.a3 Rd6
6:12	1/11	-0.07	93531786	1.Bxf5 gxf5 2.Qxf5 Qf8 3.Qe4 Nd6
					4.Qe5+ Kg8 5.Bb2 Rh6 6.Bc3 Rxa2
					7.Rad1 Nc4 8.Qg3+ Kh7 9.Bxb4 cxb4
13:33	1/12	0.00	212972329	1.Bxf5 gxf5 2.Qg3+ Kh7 3.Ng5+ Bxg5
					4.Bxg5 Qb8 5.Bf4 Qe8 6.Qg5 Nc2
					7.Qh6+ Kg8 8.Qg5+ Kh7

jm



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.