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Subject: Re: Any other programs stick on Nc2?

Author: Aaron Gordon

Date: 14:01:04 11/26/02

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CM9000 looks nice indeed. Takes Deep Fritz 7 quite bit longer on hardware over
twice as fast.. here's DF7's analysis (w/ 350mb hash) after an hour on an
AthlonXP 1900+ (1.6) @ 1.8GHz...

Analysis by Deep Fritz 7:

25...Nc2!
  =  (0.00)   Depth: 6/24   00:00:00  223kN
25...Nc2 26.Qd3 Nb4
  =  (0.00)   Depth: 7/23   00:00:00  288kN
25...Nc2 26.Qd3 Nb4 27.Qd4
  =  (0.00)   Depth: 8/23   00:00:00  368kN
25...Nc2 26.Qd3 Nb4 27.Qd4
  =  (0.00)   Depth: 9/29   00:00:00  692kN
25...Nc2 26.Qd2 Be7 27.Bxb3 Na1 28.Ba2
  =  (0.03)   Depth: 10/28   00:00:01  1688kN
25...Nc2 26.Qd2 Be7 27.Bxb3 Na1 28.Ba2 Rb8 29.Kb1 Rxb6 30.Kxa1 Qa4 31.Qd4 Qb5
  =  (0.03)   Depth: 11/28   00:00:03  3423kN
25...Nc2--
  ²  (0.31)   Depth: 12/33   00:00:07  7009kN
25...Nc2-- 26.Qd8+ Rxd8
  ²  (0.31)   Depth: 12/33   00:00:07  7465kN
25...Nc2--
  ²  (0.59)   Depth: 13/28   00:00:14  13475kN
25...Nc2-- 26.Qd8+ Rxd8
  ²  (0.59)   Depth: 13/36   00:00:16  16208kN
25...Nc2--
  ±  (0.87)   Depth: 14/31   00:00:32  31189kN
25...Nc2-- 26.Qd8+ Rxd8 27.Rxd8+ Ke7 28.Rgd1 f5 29.e5 Nd4 30.R1xd4 Qh1+ 31.Rd1
Qxd1+ 32.Kxd1 h5 33.Ra8 Kd7
  +-  (6.19)   Depth: 14/42   00:00:35  34752kN
25...a5!
  +-  (6.16)   Depth: 14/42   00:01:04  60665kN
25...a5!
  +-  (6.00)   Depth: 14/42   00:01:06  62086kN
25...a5!
  +-  (5.69)   Depth: 14/42   00:01:09  65689kN
25...a5!
  +-  (5.06)   Depth: 14/42   00:01:16  72231kN
25...a5! 26.Kb1 Rb8 27.cxb4 Bxb4 28.Ba7 Rc8 29.Rc1 Ke7 30.Bxb3 Qd6
  +-  (3.81)   Depth: 14/59   00:04:51  271917kN
25...Rb8!
  +-  (3.78)   Depth: 14/59   00:05:10  290199kN
25...Rb8!
  +-  (3.62)   Depth: 14/59   00:05:15  294665kN
25...Rb8! 26.cxb4 Be7 27.Bc5 Rd8 28.Qe3 Rb8 29.Kb1 a5 30.Bd3 axb4 31.Bxe7 Kxe7
32.Bc4 Rhc8
  +-  (3.56)   Depth: 14/59   00:05:36  314368kN
25...h5!
  +-  (3.53)   Depth: 14/59   00:06:44  378347kN
25...Be7!
  +-  (3.50)   Depth: 14/59   00:07:07  399866kN
25...Be7!
  +-  (3.34)   Depth: 14/59   00:07:08  400923kN
25...Be7!
  +-  (3.03)   Depth: 14/59   00:07:11  404606kN
25...Be7!
  +-  (2.41)   Depth: 14/59   00:07:16  409733kN
25...Be7! 26.Bxb3 Rb8 27.Ba7 Nd3+ 28.Rxd3 Rxb3 29.Rgd1 Rb7 30.Bc5 0-0 31.Bxe7
Rxe7 32.Qd6 Qb7 33.b4 f5
  ±  (1.06)   Depth: 14/59   00:07:43  435555kN
25...Be7 26.Bxb3 Rb8 27.Ba7 Nd3+ 28.Rxd3 Rxb3 29.Rgd1 Rb7 30.Bc5 0-0 31.Bxe7
Rxe7 32.Qd6 Qb7 33.b4
  ±  (1.06)   Depth: 15/42   00:08:55  505123kN
25...Be7--
  ±  (1.34)   Depth: 16/42   00:11:20  649265kN
25...Be7-- 26.Bxb3 Rb8 27.Ba7 Nd3+ 28.Rxd3 Rxb3 29.Bc5 Rb7 30.Bxe7 Kxe7 31.e5
Rhb8
  +-  (1.66)   Depth: 16/65   00:15:09  865619kN
25...Be7 26.Bxb3 Rb8 27.Ba7 Nd3+ 28.Rxd3 Rxb3 29.Bc5 Rb7 30.Bxe7 Kxe7 31.e5 Rhb8
32.exf6+ gxf6 33.Rd2 Rb4
  +-  (1.47)   Depth: 17/47   00:26:12  1517784kN
25...Be7 26.Bxb3 Rb8 27.Ba7 Nd3+ 28.Rxd3 Rxb3 29.Bc5 Rb7 30.Bxe7 Kxe7 31.e5 Rhb8
32.exf6+ gxf6 33.Rd2 Rb4
  +-  (1.47)   Depth: 18/53   00:49:33  2891072kN


Any idea as to what is going on here? Some sort of knowledge that needs to be
implemented perhaps? Deep tactics/positional stuff? I don't play chess myself so
I can't tell how this position differs from any other position. Thanks (and to
the others who did also) for posting the eval of your engine.



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