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Subject: Re: How many programs can find the winning move 52...Qe3+ ?

Author: James T. Walker

Date: 07:45:17 08/06/03

Go up one level in this thread


On August 06, 2003 at 10:09:52, Jorge Pichard wrote:

>On August 06, 2003 at 10:00:44, Tony Werten wrote:
>
>>On August 06, 2003 at 09:01:41, Jorge Pichard wrote:
>>
>>>In this position Botvinnik calculated a straightforward way to win by exchanging
>>>off the Queens: How many programs can find the winning move 52...Qe3+?
>>>
>>>[D]8/kp6/P5p1/2p1p3/2PpP3/3P3Q/4q3/6K1 b - - 0 1
>>
>>At ply 16 XiniX starts to change
>>
>>After 29:26 it still is Qe1 with a score of 2.71
>>
>>After 32:01 It changes to Qe3 with a score of 7.04
>>
>>Then it goes fast:
>>ply 17, 7.25 after 34:47
>>ply 18, 10.24 after 37:12
>>ply 19, 12.53 after 42:15
>>
>>Tony
>
>I have not found any Top Chessbase programs that can find this amazing move!
>
>Congratulations.

Shredder 7.04 takes only 5 seconds.
Engine: Shredder 7.04
by Stefan Meyer-Kahlen

  1/01	 0:00 	+2.86++	1...bxa6 (1) 0.0
  1/01	 0:00 	+2.86 	1...bxa6 (2) 0.0
  2/05	 0:00 	+2.42--	1...bxa6 2.Qh7+ Kb8 (69) 0.7
  2/07	 0:00 	+2.42 	1...bxa6 2.Qh7+ Kb8 (94) 0.9
  2/07	 0:00 	+2.52++	1...Qe3+ 2.Kg2 Kxa6 (197) 2.0
  2/07	 0:00 	+2.88++	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kf1 (232) 2.3
  2/08	 0:00 	+2.88 	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kf1 (274) 2.7
  3/10	 0:00 	+2.99 	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kf1 Kc6 (624) 6.3
  4/12	 0:00 	+3.29++	1...Qe3+ 2.Qxe3 dxe3 3.Kg2 Kxa6 4.Kf3 g5 5.Kxe3 (1.522)
15.5
  4/12	 0:00 	+3.31 	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kf1 g5 5.Ke2 g4 (1.898)
19.3
  5/12	 0:00 	+3.06--	1...Qe3+ 2.Qxe3 dxe3 3.axb7 g5 4.Kf1 Ka6 5.b8Q e2+ 6.Kxe2
(3.542) 31.0
  5/12	 0:00 	+2.56--	1...Qe3+ 2.Qxe3 dxe3 3.axb7 g5 4.Kf1 Ka6 5.b8Q e2+ 6.Kxe2
(3.664) 32.1
  5/12	 0:00 	+1.31 	1...Qe3+ 2.Qxe3 dxe3 3.axb7 g5 4.Kf1 Kxb7 5.Ke2 g4 6.Kxe3
Kc6 7.Kd2 (4.232) 37.1
  5/15	 0:00 	+1.32++	1...Qe1+ 2.Kg2 Kxa6 3.Qe6+ Ka5 4.Qf5 gxf5 (5.327) 45.5
  5/15	 0:00 	+1.68++	1...Qe1+ 2.Kg2 Kxa6 3.Qh8 Qe2+ 4.Kh1 Qxd3 5.Qxe5 (5.929)
50.6
  5/15	 0:00 	+2.62 	1...Qe1+ 2.Kg2 Qd2+ 3.Kh1 Qd1+ 4.Kg2 Qg1+ 5.Kxg1 Kb8
(11.466) 90.2
  5/15	 0:00 	+2.63++	1...Kxa6 2.Qd7 Qxd3 3.Qd6+ Ka5 4.Qa6+ bxa6 (14.854) 104.6
  5/15	 0:00 	+2.98++	1...Kxa6 2.Qg3 Qe3+ 3.Kh1 g5 4.Qh3 (16.503) 112.2
  5/15	 0:00 	+3.12 	1...Kxa6 2.Qe6+ b6 3.Qxe5 Qe3+ 4.Kg2 Qd2+ 5.Kg1 Qxd3 6.Qd5
(18.566) 122.1
  6/17	 0:00 	+2.87--	1...Kxa6 2.Qe6+ b6 3.Qe8 b5 4.Qxe5 Qh2+ 5.Qxh2 (23.318)
143.9
  6/17	 0:00 	+2.37--	1...Kxa6 2.Qe6+ b6 3.Qc6 Qe3+ 4.Kg2 Qd2+ 5.Kg1 Qd1+ 6.Kg2
Qg4+ 7.Kf2 Qf4+ 8.Kg2 Qd2+ 9.Kg1 Qd1+ 10.Kg2 Qg4+ 11.Kf2 Qf4+ 12.Kg2 Qd2+ 13.Kg1
(25.673) 153.7
  6/23	 0:00 	+2.28 	1...Kxa6 2.Qe6+ b6 3.Qc6 Qg4+ 4.Kf2 Qf4+ 5.Kg2 g5 (28.180)
163.8
  6/23	 0:00 	+2.29++	1...Qe1+ 2.Kg2 Qd2+ 3.Kf3 (29.511) 171.5
  6/23	 0:00 	+2.46 	1...Qe1+ 2.Kg2 Qd2+ 3.Kg1 Qd1+ 4.Kg2 Qg1+ 5.Kxg1 Kb8
(37.122) 188.4
  7/21	 0:00 	+2.46 	1...Qe1+ 2.Kg2 Qd2+ 3.Kg1 Qd1+ 4.Kg2 Qg1+ 5.Kxg1 Kb8
(66.638) 258.2
  8/21	 0:00 	+2.43 	1...Qe1+ 2.Kg2 Qd2+ 3.Kg1 Qd1+ 4.Kg2 Qg1+ 5.Kxg1 Kb8
(155.709) 377.9
  9/23	 0:00 	+2.68++	1...Qe1+ 2.Kg2 Qd2+ 3.Kg1 Qc1+ 4.Kg2 Qb2+ 5.Kf1 bxa6
6.Qd7+ Qb7 7.Ke1 (305.409) 447.8
  9/23	 0:00 	+2.80 	1...Qe1+ 2.Kg2 Qd2+ 3.Kg1 Qc1+ 4.Kg2 Qb2+ 5.Kf1 bxa6 6.Qd7+
Qb7 7.Qd6 Qb1+ 8.Ke2 Qc2+ 9.Ke1 Qxd3 10.Qxc5+ Kb7 11.Qxe5 Qxc4 (326.033) 448.4
 10/27	 0:01 	+2.75 	1...Qe1+ 2.Kg2 Kxa6 3.Qc8 Qd2+ 4.Kh1 g5 5.Qxc5 g4 6.Qxe5
Qh6+ 7.Kg1 Qh2+ 8.Kxh2 g3+ 9.Qxg3 (786.875) 477.7
 11/29	 0:03 	+2.74 	1...Qe1+ 2.Kh2 Kxa6 3.Qc8 Qe2+ 4.Kh1 Qf1+ 5.Kh2 Qf2+ 6.Kh1
Qf3+ 7.Kg1 g5 8.Qxc5 g4 9.Qxe5 Qf2+ 10.Kxf2 b6 11.Qxd4 (1.485.641) 491.6
 12/30	 0:04 	+2.83 	1...Qe1+ 2.Kh2 Qd2+ 3.Kh1 Qc1+ 4.Kg2 Qb2+ 5.Kh1 bxa6 6.Qd7+
Qb7 7.Qd6 Qb1+ 8.Kg2 Qc2+ 9.Kg1 Qc1+ 10.Kg2 Qg5+ 11.Kf3 Qf4+ 12.Kg2 Qd2+ 13.Kg1
Qd1+ 14.Kh2 Qe2+ (2.433.064) 506.1
 12/30	 0:05 	+2.84++	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5 6.Kg4
Kb4 7.Kg5 Kc3 8.Kxg6 Kxd3 9.Kh7 Kxc4 10.Kh8 Kc3 (2.788.984) 468.5
 12/30	 0:06 	+3.19++	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5 6.Kg4
Kb4 7.Kg5 Kc3 8.Kxg6 Kxd3 9.Kh7 Kxc4 10.Kh8 Kc3 (2.797.954) 464.6
 12/32	 0:06 	+3.29 	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5 6.Kxe3
Kb4 7.Kd2 g5 8.Ke3 Kc3 9.Ke2 g4 10.Ke3 g3 (2.888.981) 466.1
 13/23	 0:06 	+3.31 	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5 6.Kxe3
Kb4 7.Kd2 g5 8.Ke3 Kc3 9.Ke2 g4 10.Ke3 g3 11.Kf3 Kxd3 12.Kxg3 Kxe4 (2.925.016)
464.4
 14/25	 0:08 	+3.31 	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5 6.Kxe3
Kb4 7.Kd2 g5 8.Kc2 g4 9.Kd2 g3 10.Ke3 Kc3 11.Kf3 Kxd3 12.Kxg3 Kxe4 (3.687.018)
458.7
 15/27	 0:12 	+3.31 	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5 6.Kxe3
Kb4 7.Kd2 g5 8.Kc2 g4 9.Kd2 g3 10.Ke3 Kc3 11.Kf3 Kxd3 12.Kxg3 Kxe4 (5.271.739)
433.1
 16/29	 0:24 	+3.31 	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5 6.Kxe3
Kb4 7.Kd2 g5 8.Kc2 g4 9.Kd2 g3 10.Ke3 Kc3 11.Kf3 Kxd3 12.Kxg3 Kxe4 (9.500.210)
395.7
 17/36	 0:47 	+3.22 	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5 6.Kxe3
Kb4 7.Kd2 g5 8.Kc2 g4 9.Kd2 g3 10.Ke3 Kc3 11.Kf3 Kxd3 12.Kxg3 Ke3 13.Kg4 Kxe4
(18.560.538) 389.6
 18/40	 3:26 	+3.11 	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5 6.Kxe3
Kb4 7.Kd2 g5 8.Kc2 g4 9.Kd2 g3 10.Ke2 Kc3 11.Ke3 g2 12.Kf2 Kxd3 13.Kxg2 Kxe4
(91.921.234) 444.9
 19/42	12:51 	+3.36++	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5
6.Kxe3 Kb4 7.Kd2 g5 8.Ke3 Kc3 9.d4 cxd4+ 10.Kf3 Kxc4 11.Kg2 (335.066.933) 434.3
 19/42	12:52 	+3.80 	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5 6.Kxe3
Kb4 7.Kd2 g5 8.Kc2 g4 9.Kd2 g3 10.Ke2 Kc3 11.Ke3 g2 12.Kf2 Kxd3 13.Kxg2 Kxc4
14.Kf3 (335.252.433) 434.1
 20/44	16:02 	+4.05++	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5
6.Kxe3 Kb4 7.Kd2 g5 8.Kc2 g4 9.Kd2 g3 10.Ke2 Kc3 11.Kf3 Kxd3 12.Kg4 Kxc4
(392.694.190) 408.2
 20/45	16:02 	+4.55++	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5
6.Kxe3 Kb4 7.Kd2 g5 8.Kc2 g4 9.Kd2 g3 10.Ke2 Kc3 11.Kf3 Kxd3 12.Kg4 Kxc4
(392.966.430) 408.1
 20/46	16:04 	+4.91 	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5 6.Kxe3
Kb4 7.Kd2 g5 8.Kc2 g4 9.Kd2 g3 10.Ke2 Kc3 11.Ke3 g2 12.Kf2 Kxd3 13.Kg1 Kxe4
(393.402.216) 407.8
 21/48	24:12 	+5.16++	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5
6.Kxe3 Kb4 7.Kd2 g5 8.Kc2 g4 9.Kd2 g3 10.Ke3 Kc3 11.d4 cxd4+ 12.Kf3 Kxc4 13.Kg4
(527.907.374) 363.4
 21/48	24:14 	+5.66++	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5
6.Kxe3 Kb4 7.Kd2 g5 8.Kc2 g4 9.Kc1 g3 10.Kb1 Ka5 11.Kb2 Ka4 12.d4 cxd4
(528.584.527) 363.5
 21/50	26:15 	+12.07	1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5 6.Kxe3
Kb4 7.Kd2 g5 8.Ke2 Kc3 9.Ke3 g4 10.Ke2 g3 11.d4 g2 12.dxe5 g1Q 13.Kf3 Qh1+
14.Ke3 Qh6+ (559.430.065) 354.9



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