Author: Dieter Buerssner
Date: 10:24:44 05/02/02
Go up one level in this thread
On May 02, 2002 at 12:01:25, Brian Richardson wrote:
>On May 02, 2002 at 11:40:57, Robert Hyatt wrote:
>>
>>This isn't a "king safety" position. It is a pure tactical position:
>
>It might be king safety related. Tinker also finds Nxh5 in about the same time
>on my laptop as Crafty does. However, when using only material and piece square
>tables in a "fast eval" mode, Tinker does not find the move after a couple of
>minutes. Gerbil (v1 and v2) does not find it either. So, an eval with king
>safety terms is a factor (Gerbil v2 has some, but not enough I guess).
Yace is a bit in between. It finds it at bigger depth with material only
evaluation, but it is not a huge difference.
Default settings, hash 20M, K6 2 475:
644127 5.367 0.08 7t 43. Bxe5 Rxe5 44. Nd4 Bd7 45. Qf4 b4 46. Nge2
Ra3 {0}
944848 7.686 0.09 7t+ 43. Nxh5+ gxh5 44. Rxf6 Bxf6 45. Rxf6 Nxf6 46.
Qg5+ Kh7 47. Bxf6 Re7 48. Bxe7H Nxe4H 49.
Bxe4+H {270}
1149235 9.348 0.20 7t 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Qh6+ Kh8 46.
Bxe5 dxe5 47. Qxh5 Rg8 {-100}
1252766 10.125 0.20 7. 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Qh6+ Kh8 46.
Bxe5 dxe5 47. Qxh5 Rg8 {-100}
1668585 13.208 0.60 8++ 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Qh6+ Kh8 46.
Bxe5 dxe5 47. Rf7 Qxh4+ 48. Kg1 Qe7 49. Rxe7H
{741}
2607355 21.941 1.60 8++ 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Bxe5 dxe5 46.
Qh6+ Kh8 47. Rf7 b4 48. Rxh7+ Kg8 {160}
6464865 51.934 5.70 8t 43. Nxh5+ Kh8 44. Nxf6 Re7 45. Qh6 Be6 46. dxe6
Bxd4 47. Nxd4 {510}
6840647 53.963 5.70 8. 43. Nxh5+ Kh8 44. Nxf6 Re7 45. Qh6 Be6 46. dxe6
Bxd4 47. Nxd4 {510}
material only:
681883 3.923 0.00 8t 43. Bxe5 dxe5 44. Rf3 Rd8 45. R3f2 Nd3 46. Rf3
Bg4 47. Re3 {0}
1381462 7.686 0.01 8t+ 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Bxe5 dxe5 46.
Qh6+ Kh8 47. Rf7 Bg4 48. Rxh7+ Kg8 {160}
1785945 10.035 0.40 8++ 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Bxe5 dxe5 46.
Qh6+ Kh8 47. Rf7 Bg4 48. Rxh7+ Kg8 {160}
2421157 14.021 1.40 8++ 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Bxe5 Kg8 46.
Qh6 Kh8 47. Rxd6+ Kg8 {250}
3666662 21.011 2.41 8t 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Bxe5 Nxf6 46.
Bxf6+ Qxf6 47. Rxf6 Kxf6 48. Qh6+ Kf7 49. Qxh5+
Kf8 {241}
3853232 21.971 2.41 8. 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Bxe5 Nxf6 46.
Bxf6+ Qxf6 47. Rxf6 Kxf6 48. Qh6+ Kf7 49. Qxh5+
Kf8 {241}
6761781 38.064 2.81 9++ 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Bxe5 Nxf6 46.
Rxf6 Kg8 47. Qh6 Qd7 48. Qg6+ Qg7 49. Qxe8+ Qf8
{510}
8884779 50.607 3.81 9++ 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Bxe5 Nxf6 46.
Rxf6 Kg8 47. Qh6 Qd7 48. Qg6+ Qg7 49. Qxe8+ Qf8
{510}
17274770 1:36.3 5.00 9t 43. Nxh5+ Kh8 44. Nxf6 Bxd4 45. Qxd4 Re5 46.
Nxh7 Bg4 47. Rf8+ Kg7 48. R1f7+H Kh6H 49. Nf4H
Ra7H {HT} {500}
But extensions play (not surprisingly) also a big role. Disabling check
extensions:
2850292 26.486 0.02 9t 43. Bxe5 Rxe5 44. Nd4 Bd7 45. Qf4 Ra3 46. Nge2
Bg4 {HT} {0}
3471904 31.946 0.03 9t+ 43. Nxh5+ gxh5 44. Rxf6 Kg8 45. Bxe5 Rxe5 46.
Rg6+ Kh8 47. Qh6 Rxa2 {-260}
3806313 35.212 0.39 9t 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Qh6+ Kh8 46.
Qxh5 Bg4 47. Rxd6 Bxh5 48. Rxd8 Rxd8 49. Bxe5+
Kg8 {-170}
4063253 37.615 0.39 9. 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Qh6+ Kh8 46.
Qxh5 Bg4 47. Rxd6 Bxh5 48. Rxd8 Rxd8 49. Bxe5+
Kg8 {-170}
5061264 46.067 0.39 10t 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Qh6+ Kh8 46.
Qxh5 Bg4 47. Rxd6 Bxh5 48. Rxd8 {HT} {-20}
8076545 1:15.1 0.39 10. 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Qh6+ Kh8 46.
Qxh5 Bg4 47. Rxd6 Bxh5 48. Rxd8 {HT} {-20}
10587094 1:38.8 0.79 11++ 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Qh6+ Kh8 46.
Bxe5 dxe5 47. Rf7 Nxe4 48. Rxh7+ Kg8 {80}
14158147 2:15.2 1.79 11++ 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Qh6+ Kh8 46.
Bxe5 dxe5 47. Rf7 Rxa2 48. Bxa2 Kg8 {240}
20828639 3:24.6 3.86 11t 43. Nxh5+ gxh5 44. Rxf6 Bxf6 45. Rxf6 Nxf6 46.
Qg5+ Kh7 47. Bxf6 Qc7H 48. e5+H Nd3H {HT} {-490}
same with material only:
3958841 22.080 0.00 10. 43. Bxe5 dxe5 44. Rg1 Nd3 45. Rf3 Nf2+ 46. Kh2
Kg8 47. d6 Ra3 48. d7 Ng4+ 49. Kh1 {0}
7295650 40.930 0.00 11t 43. Bxe5 dxe5 44. Rf3 Nd3 45. Re3 Kh8 46. Bxd3
cxd3 47. Rxd3 f5 48. d6 Bd7 {HT} {70}
11072761 1:03.1 0.01 11t+ 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Qh6+ Kh8 46.
Bxe5 dxe5 47. Rf7 Qd7 48. Rxd7 Nxd7 {321}
13477591 1:18.2 0.40 11++ 43. Nxh5+ gxh5 44. Rxf6 Qd8 45. Qh6+ Kh8 46.
Bxe5 dxe5 47. Rf7 Qd7 48. Rxd7 Nxd7 {321}
16919720 1:39.5 0.90 11t 43. Nxh5+ gxh5 44. Rxf6 Nxf6 45. Qg5+ Kh7 46.
Rxf6 Bxf6 47. Bxf6 Re7 48. Qxh5+ Kg8 {HT} {-410}
18980925 1:51.4 0.90 11. 43. Nxh5+ gxh5 44. Rxf6 Nxf6 45. Qg5+ Kh7 46.
Rxf6 Bxf6 47. Bxf6 Re7 48. Qxh5+ Kg8 {HT} {-410}
30552587 2:56.2 1.30 12++ 43. Nxh5+ gxh5 44. Rxf6 Nxf6 45. Qg5+ Kh7 46.
Rxf6 Bxf6 47. Bxf6 Rxa2 48. Bxa2 Re7 49. Bxe7
Nd3 {430}
Regards,
Dieter
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