Author: Bernhard Bauer
Date: 23:17:39 06/13/02
Go up one level in this thread
On June 13, 2002 at 16:50:48, Dieter Buerssner wrote:
>On June 12, 2002 at 17:25:06, Gian-Carlo Pascutto wrote:
>
>>On June 12, 2002 at 16:46:50, Ferdinand S. Mosca wrote:
>>
>>>From initial test of some free engines only Yace can do 51. Rxg7.
>>
>>Here, it switches away again after a while.
>
>Strange. Which version did you try? Here is what I get with 0.99.56:
>
> 8198324 45.995 0.30 15t 51. Kg4 Rc7 52. Kf4 Re7 53. Rc8 Kd7 54. Rc5
> Ke6H 55. b3H cxb3H 56. Rc8H {HT}
> 12008970 1:07.9 0.30 15. 51. Kg4 Rc7 52. Kf4 Re7 53. Rc8 Kd7 54. Rc5 Ke6
> 55. b3 cxb3 56. Rc8
> 16669698 1:34.9 0.30 16t 51. Kg4 Rc7 52. Kf4 Re7 53. Rd8 Rd7 54. Re8+
> Re7H 55. Rb8H Rd7H 56. Rg8H Re7H 57. Rd8H Rd7H
> 58. Re8+H Re7H 59. Rb8H Rd7H 60. Rg8H Re7HR {0}
> 24373486 2:21.4 0.31 16t+ 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Kxe6 56. g8=Q+ Rxg8 57. Kxg8 Kd7
> 58. Kf7 Kc6 59. Ke6 Kc7 60. Kxd5 Kb8H 61. Kxc4H
> Kc7H 62. d5H Kd7H 63. d6H Kxd6H 64. b4H Ke6H
> 65. b5H Kd7H 66. Kd4H axb5H 67. Ke4H Ke6H {HT}
> {0}
> 25930622 2:29.3 0.32 16t 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8H 54. Kh7H
> Kf7H 55. g8=NH {HT}
> 27953542 2:40.6 0.32 16. 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. g8=N
> 31693664 3:02.1 0.48 17t 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Ke7 56. g8=Q Rxg8 57. Kxg8 Kxe6 58.
> Kg7 Ke7 59. Kg6 Ke6 60. Kg5 Kf7 61. Kf5 Kg7 62.
> Ke5H Kg6H 63. Kxd5H Kf7H 64. Kxc4H Kf8H 65. d5H
> Ke7H 66. d6+H Kd7H 67. b4H Kc6H 68. b5+H axb5+H
> 69. Kb4H Kd5H 70. Kxb5H Ke5H 71. c4H Kxd6H 72.
> c5+H Kc7H 73. Ka4H {HT} {80}
> 50717795 4:58.0 0.48 17. 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Ke7 56. g8=Q Rxg8 57. Kxg8 Kxe6 58.
> Kg7 Ke7 59. Kg6 Ke6 60. Kg5 Kf7 61. Kf5 Kg7 62.
> Ke5 Kg6 63. Kxd5 Kf7 64. Kxc4 Kf8 65. d5 Ke7
> 66. d6+ Kd7 67. b4 Kc6 68. b5+ axb5+ 69. Kb4
> Kd5 70. Kxb5 Ke5 71. c4 Kxd6 72. c5+ Kc7 73.
> Ka4 {HT} {80}
> 58823673 5:46.7 0.49 18t 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Ke7 56. g8=Q Rxg8 57. Kxg8 Kxe6 58.
> Kg7 Ke7 59. Kg6 {HT} {0}
> 123124973 12:41.5 0.49 18. 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Ke7 56. g8=Q Rxg8 57. Kxg8 Kxe6 58.
> Kg7 Ke7 59. Kg6 Kd7H 60. Kf7H Kd6H 61. Kf6H
> Kd7H 62. Ke5H Kc6H 63. Ke6H Kc7H 64. Kxd5H {HT}
> {80}
> 137306409 14:05.5 0.50 19t 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Ke7 56. g8=Q Rxg8 57. Kxg8 Kxe6 58.
> Kg7 Ke7 59. Kg6 Kd7 60. Kf7 Kc7H {HT} {0}
> 264459994 27:40.2 0.50 19. 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Ke7 56. g8=Q Rxg8 57. Kxg8 Kxe6 58.
> Kg7 Ke7 59. Kg6 Kd7 60. Kf7 Kc7 61. Ke6H b5H
> {HT} {0}
> 296540632 30:46.6 0.54 20t 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Ke7 56. g8=Q Rxg8 57. Kxg8 Kxe6 58.
> Kg7 Ke7 59. Kg6 Kd7 60. Kf7 Kd6H 61. Kf6H Kc6H
> 62. Ke5H Kb5H 63. Kxd5H b6H 64. axb6H Kxb6H 65.
> Kd6H Ka5H 66. d5H Ka4H 67. Ke5H Kb5H {HT} {80}
> 648338307 1:08:07 0.54 20. 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Ke7 56. g8=Q Rxg8 57. Kxg8 Kxe6 58.
> Kg7 Ke7 59. Kg6 Kd7 60. Kf7 Kd6 61. Kf6 Kc6 62.
> Ke5 Kb5 63. Kxd5 b6 64. axb6 Kxb6 65. Kd6 Ka5
> 66. d5 Ka4 67. Ke5 Kb5 {HT} {80}
> 921643881 1:37:58 0.94 21++ 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Ke7 56. g8=Q Rxg8 57. Kxg8 Kxe6 58.
> Kg7 Ke7 59. Kg6 Kd7 60. Kf7 Kc7 61. Kf6 b6 62.
> Ke5 bxa5 63. Kxd5 Kd7 64. Kxc4 Kc6 65. d5+ Kc7
> 66. d6+ Kxd6 67. b3 a4 {0}
>1001797658 1:45:53 1.94 21++ 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Ke7 56. g8=Q Rxg8 57. Kxg8 Kxe6 58.
> Kg7 Ke7 59. Kg6 Kd7 60. Kf7 Kc6 61. Ke6 Kb5 62.
> Kxd5 Kxa5 63. Kxc4 Kb6 64. Kd5 Kb5 65. Kd6 a5
> 66. b3 Ka6H {HT} {80}
>
>And my current developement version even sees a rather significant advantage in
>reasonable time:
>
> 13300432 1:17.0 0.45 15. 51. Kg4 Rc7 52. Re8+ Re7 53. Rf8 Kd7 54. Kf5
> Re8 55. Rxe8 Kxe8 56. Ke6 Kf8 57. Kxd5 h5 58.
> Ke4 Ke7 59. d5 h4 60. e6 b5 61. axb6 h3 62. b7
> h2 63. b8=Q {HT} {1081}
> 19131878 1:50.9 0.44 16t 51. Kg4 Rc7 52. Re8+ Re7 53. Rf8 Rd7 54. Kf4
> Re7 55. Rc8 Rd7 56. Rh8 Re7 57. Kg4H {HT}
> 31314518 3:10.6 0.45 16t+ 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Kxe6 56. g8=Q+ Rxg8 57. Kxg8 Kd6
> 58. Kf7 Kc6 59. Ke6 b5 60. axb6 Kxb6 61. Kxd5
> a5 62. Kxc4 a4 63. d5 Kc7 64. d6+ Kd8H 65. b4H
> Kd7H 66. b5H Kxd6H 67. Kb4H a3H 68. Kxa3H {HT}
> {160}
> 32047835 3:14.8 0.46 16t 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Kf7H 54. Kg5H
> {HT}
> 34656524 3:29.8 0.46 16. 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Kf7 54. Kg5
> 38663115 3:53.3 0.86 17++ 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Kf7 54. Kh7
> Re8 55. e6+ Rxe6 56. g8=Q+ Ke7
> 44798929 4:32.0 1.86 17++ 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Kf7 54. Kh7
> Re8 55. e6+ Rxe6 56. g8=Q+ Ke7
> 49233322 5:00.2 1.88 17t 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+H Kxe6H 56. g8=Q+H Rxg8H 57. Kxg8H
> Kd6H 58. Kf7H Kc7H 59. Ke7H b5H 60. axb6+H Kb7H
> 61. Kd6H a5H 62. Kxd5H a4H 63. Kxc4H Ka6H 64.
> b7H Kxb7H 65. d5H Kc8H 66. b4H Kc7H 67. b5H
> {HT} {160}
> 73761083 7:31.7 1.88 17. 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Kxe6 56. g8=Q+ Rxg8 57. Kxg8 Kd6
> 58. Kf7 Kc7 59. Ke7 b5 60. axb6+ Kb7 61. Kd6 a5
> 62. Kxd5 a4 63. Kxc4 Ka6 64. b7 Kxb7 65. d5 Kc8
> 66. b4 Kc7 67. b5 {HT} {160}
> 85771709 8:49.5 2.28 18++ 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Kxe6 56. g8=Q+ Rxg8 57. Kxg8 Kd6
> 58. Kf7 Kc6 59. Ke6 Kb5 60. Kxd5 Ka4 61. Kxc4
> Kxa5 62. d5 Kb6 63. Kd4 Ka5 64. d6 Kb5 65. b4
> {80}
> 114171116 11:59.8 2.78 18t 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Kxe6 56. g8=Q+ Rxg8 57. Kxg8 Kd6
> 58. Kf7 Kc6 59. Ke6 b6 60. axb6 Kxb6 61. Kxd5
> Kb5 62. Ke6 Kb6 63. d5H Kc7H 64. d6+H Kd8H 65.
> d7H a5H 66. Kd6H a4H 67. Kc6H {HT} {80}
> 161716505 17:18.0 2.78 18. 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Kxe6 56. g8=Q+ Rxg8 57. Kxg8 Kd6
> 58. Kf7 Kc6 59. Ke6 b6 60. axb6 Kxb6 61. Kxd5
> Kb5 62. Ke6 Kb6 63. d5 Kc7 64. d6+ Kd8 65. d7
> a5 66. Kd6 a4 67. Kc6 {HT} {80}
> 227630698 24:32.7 3.18 19++ 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Kxe6 56. g8=Q+ Rxg8 57. Kxg8 Kd6
> 58. Kf7 Kc7 59. Ke6 Kd8 60. Ke5 Ke8 61. Kxd5
> Kd7 62. Kxc4 Kc6 63. d5+ Kc7 64. b4 Kd6 65. b5
> b6 {160}
> 257663391 27:47.8 3.21 19t 51. Rxg7 Rxg7 52. Kxh6 Re7 53. g7 Re8 54. Kh7
> Kf7 55. e6+ Ke7H 56. g8=QH Rxg8H 57. Kxg8H {80}
>
>Neiter version switched away from Rxg7.
>
>Regards,
>Dieter
I tried Yace too and observed the score for Rxg7 rising - and going down again.
Hardware: P3-450, 64 MB hash.
Have a look.
14951190 57.503 0.30 16t 1.Kg4 Re7 2.Rd8 Rd7 3.Re8+ Re7 4.Rh8 Rd7 5.Kf4
Re7 6.Rd8 Rd7 7.Rh8H Re7H 8.Rd8H Rd7H 9.Rh8HR
{0}
24002120 1:32.7 0.31 16t+ 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Re8 4.Kh7 Kf7 5.e6+
Ke7 6.g8=R Rxg8 7.Kxg8 Kxe6H 8.Kg7H Ke7H 9.Kg6H
Ke6H 10.Kg5H Kd7H 11.Kf5H Kc6H 12.Ke5H Kb5H
13.Kxd5H Kxa5H 14.Kxc4H Ka4H 15.d5H Ka5H 16.d6H
Kb6H 17.d7H Kc7H 18.d8=Q+H Kxd8H 19.b4H {0}
27899388 1:48.1 0.34 16t 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Re8 4.Kh7 Kf7 5.e6+
Kf6H 6.g8=QH Re7+H 7.Kh8H Re8H {HT}
30044500 1:56.5 0.34 16. 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Re8 4.Kh7 Kf7 5.e6+
Kf6 6.g8=Q Re7+ 7.Kh8 Re8
33179127 2:08.7 0.35 17t 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Re8 4.Kh7 Kf7 5.e6+
Kf6 6.g8=Q Rxg8H 7.Kxg8H Kxe6H 8.Kg7H Ke7H {0}
53354673 3:34.9 0.35 17. 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Re8 4.Kh7 Kf7 5.e6+
Kf6 6.g8=Q Rxg8 7.Kxg8 Kxe6 8.Kg7 Ke7 {0}
59870214 4:00.7 0.36 18t 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Re8 4.Kh7 Kf7 5.e6+
Kf6 6.g8=Q Rxg8H 7.Kxg8H Kxe6H {0}
116463225 8:11.5 0.36 18. 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Re8 4.Kh7 Kf7 5.e6+
Kf6 6.g8=Q Rxg8 7.Kxg8 Kxe6 {0}
127568392 8:57.3 0.76 19++ 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Re8 4.Kh7 Kf7 5.e6+
Kf6 6.g8=Q Rxe6
148013417 10:22.6 1.76 19++ 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Re8 4.Kh7 Kf7 5.e6+
Kf6 6.g8=Q Rxe6
167683855 11:43.9 2.01 19t 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Re8 4.Kh7 Kf7 5.e6+
Kf6 6.g8=Q Rxg8 7.Kxg8 Ke7 8.Kg7 Kxe6 9.Kg6 Ke7
10.Kf5 Kd7 11.Ke5 Kc6 12.Ke6 b5 {0}
307369839 21:49.0 2.01 19. 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Re8 4.Kh7 Kf7 5.e6+
Kf6 6.g8=Q Rxg8 7.Kxg8 Ke7 8.Kg7 Kxe6 9.Kg6 Ke7
10.Kf5 Kd7 11.Ke5 Kc6 12.Ke6 b5 {0}
354627445 25:08.3 2.01 20t 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Re8 4.Kh7 Kf7 5.e6+
Kf6H 6.g8=QH Rxg8H 7.Kxg8H b5H 8.axb6H Kg5H
9.e7H a5H {HT}
656164242 48:01.5 2.01 20. 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Re8 4.Kh7 Kf7 5.e6+
Kf6 6.g8=Q Rxg8 7.Kxg8 b5 8.axb6 Kg5 9.e7 a5
694444454 50:45.1 1.61 21-- 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Kf7 4.Kh7 Re8 5.e6+
Kf6 6.g8=Q Rxg8 7.Kxg8 Kxe6 8.Kg7 Ke7 9.Kh6 Kd7
10.b3
730538349 53:18.1 0.61 21-- 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Kf7 4.Kh7 Re8 5.e6+
Kf6 6.g8=Q Rxg8 7.Kxg8 Kxe6 8.Kg7 Ke7 9.Kg8 Ke8
10.Kh8 Kd7 11.b3
819511634 59:29.9 0.00 21t 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Kf7 4.Kh7 Re8 5.e6+
Kf6 6.g8=Q Rxg8 7.Kxg8 Kxe6 8.Kg7 Ke7 9.Kh8 Kf6
10.Kh7 Kf7 11.Kh8 Kf8 12.Kh7 {HT} {0}
827320234 59:58.9 0.00 21u. 1.Rxg7 Rxg7 2.Kxh6 Re7 3.g7 Kf7 4.Kh7 Re8 5.e6+
Kf6 6.g8=Q Rxg8 7.Kxg8 Kxe6 8.Kg7 Ke7 9.Kh8 Kf6
10.Kh7 Kf7 11.Kh8 Kf8 12.Kh7 {HT} {0}
827320234 Nodes, 11.74% Leavenodes, 229876 Nodes/sec
346081222 eval, 87.25% score, 4286323784 genmoves, 2.97% captures le 756/676
ext: pawn 11665291, rcp 566959, chk 63081555, repchk 251355, null 50079, prune
18689716
htable: 538670360 store, 0 rejected, 823278787 probe, 48.9% f/p, 74.7% f/s
entries 5592405 age 1 renew 0
egtb probes 210, found 205 max_depth 55
white ( 1): Rxg7
Kind regards
Bernhard
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