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Subject: Re: Interesting Position - Shredder vs Cobra

Author: John Merlino

Date: 14:33:36 03/10/05

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On March 10, 2005 at 15:39:58, Ray Banks wrote:

>http://www.talkchess.com/forums/1/message.html?416095
>
>White to move (Shredder). Took 90 mins on this move (move 41) and evaluation was
>-300
>I'd be interested in what some other engines think of white's position at this
>point, and do they see the mate coming

Wow, that's one nasty fail low! What *I* want to know is how did Shredder get in
such a bad position in the first place. :-)

CM9_R1 on an AMD 2500 sees that things are very bad indeed after a few minutes,
but does not announce a mate, even after almost 20 minutes:

Time	Depth	Score	Positions	Moves
0:00	1/3	-4.01	2978		1.Qc3 h3 2.Nf3 hxg2+ 3.Bxg2 Bxf3
					4.axb6 Rxg2
0:00	1/3	-2.83	4736		1.Re1 Qxb4 2.Rxe5 Bxa5
0:00	1/3	-1.94	5638		1.Rd1 Ba7 2.Rxd5 exd5
0:00	1/3	-0.54	6009		1.Rc8 Bxa5 2.bxa5 Rxf1 3.Rc7+ Kh6
0:00	1/4	-1.21	11386		1.Rc8 Bd4 2.Rc7+ Kf6 3.Bd3 Bxg2+
					4.Qxg2 Rxg2 5.Kxg2
0:00	1/5	-Mate07	34359		1.Rc8 Rxf1 2.axb6 Qf2 3.Rc7+ Kf6
					4.Qxh4+ Qxh4 5.Rf7+ Kxf7 6.b5 Rxg1+
					7.Kxg1 Qe1#
0:00	1/5	-11.60	47297		1.Bc4 Qxc1 2.axb6 Bxc4 3.Qf3 Rxf3
					4.gxf3
0:00	1/5	-7.68	68502		1.Bd3 Qg5 2.Bf1 Qxc1 3.axb6 Qxf1
0:00	1/5	-7.28	99649		1.Ra1 Bd4 2.Nf3 Bxa1 3.Kg1 Bd4
0:00	1/5	-2.59	109538		1.Rb1 Be3 2.Nf3 Qxb4 3.Rd1 Qa4
0:01	1/5	-2.17	120595		1.Rd1 Bd4 2.Be2 Bxg2+ 3.Qxg2 Rxg2
					4.Kxg2 Bxg1 5.Rd7+ Kf6 6.Kxg1 Qxb4
0:01	1/6	-2.51	158714		1.Rd1 Be3 2.Rd3 Bd4 3.Rxd4 exd4
0:01	1/7	-2.43	265967		1.Rd1 Ba7 2.Be2 Qxb4 3.Bf3 Ra2
					4.Bxd5 exd5
0:02	1/8	-2.65	519266		1.Rd1 Bd4 2.Be2 Qf5 3.Rxd4 exd4
					4.Bf3 Bxf3 5.gxf3
0:04	1/9	-3.14	1154743		1.Rd1 Be3 2.Nf3 g5 3.Re1 Qxb4 4.Rd1
					g4 5.Qxh4 Rxf3
0:08	1/10	-6.31	2457542		1.Rd1 Be3 2.Nf3 g5 3.Be2 Rxe2 4.b5
					Qa4 5.Rb1 Qxa5 6.Qg4
0:17	1/10	-3.88	5130368		1.Re1 Bc7 2.Nf3 Bxf3 3.gxf3 e4
					4.Kg1 Rxh2 5.Qg4 Rh1+ 6.Kf2 Qd2+
					7.Re2 e3+ 8.Kg2 Rh2+ 9.Kg1 Rxe2
					10.Bxe2 Qxe2 11.Qxh4 Qxf3
0:30	1/11	-4.32	9123228		1.Re1 Bc7 2.Nf3 Bxf3 3.gxf3 e4
					4.Kg1 Rxh2 5.Rxe4 Rxh3 6.Rxf4 Rg3+
					7.Kf2 Bxf4
1:13	1/12	-5.30	23382379	1.Re1 Bc7 2.Nf3 Bxf3 3.gxf3 e4
					4.Kg1 Rxh2 5.Rxe4 Qd2 6.Qg2 Rxg2+
					7.Bxg2 h3
3:09	2/13	-11.04	60236817	1.Re1 Bd4 2.Qd3 Ra2 3.Nh3 Qg4 4.Qe2
					Rxe2 5.Rxe2 Qxh3 6.Re1 Qc3 7.Rb1
					Be4 8.Rd1 Qxb4
3:56	2/13	-10.14	75498653	1.Rd1 Be3 2.Nf3 g5 3.b5 g4 4.Qxh4
					gxf3 5.Qxf2 Bxf2 6.g3 Qa4 7.Rxd5
					exd5 8.a6 Kf6
7:10	3/14	-11.80	140371482	1.Rd1 Be3 2.Nf3 Rxf3 3.gxf3 Bxf3+
					4.Bg2 Bxd1 5.Qxe6 Bf3 6.Qd7+ Kh6
					7.Qh3 Be4 8.Qxe3 Qxe3 9.Bxe4 Qxe4+
					10.Kg1 Qe1+ 11.Kg2 Qxb4
17:26	4/15	-15.06	349641551	1.Rd1 Be3 2.Nf3 Rxf3 3.gxf3 Bxf3+
					4.Bg2 Bxd1 5.b5 Qf2 6.Qxe3 Qxe3
					7.h3 Qe1+ 8.Kh2 Qxa5 9.Kg1 Qxb5
					10.Kh1 Qe2 11.Kh2 Qf2

jm



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