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Subject: Yet Another difficult position for chess programs

Author: Joshua Lee

Date: 16:23:56 01/05/01


Fritz6 - IM Nathanael Situru
4rrk1/1q4b1/p5p1/1pPP1p1p/4p1n1/1P4N1/P3QBPP/1R1R2K1 b - - 0 1

Analysis by Fritz 6:

23...Nxf2--
  =  (0.19)   Depth: 1/3   00:00:00
23...Nxf2-- 24.Qxf2
  ²  (0.66)   Depth: 1/3   00:00:00
23...Nxf2 24.Qxf2 f4
  ²  (0.47)   Depth: 2/6   00:00:00
23...Nxf2 24.Qxf2 f4 25.Ne2
  ²  (0.50)   Depth: 3/13   00:00:00  1kN
23...Nf6!
  ²  (0.47)   Depth: 3/13   00:00:00  1kN
23...Nf6 24.c6 Qc7 25.Qe3
  ²  (0.69)   Depth: 4/11   00:00:00  2kN
23...Nxf2!
  ²  (0.66)   Depth: 4/11   00:00:00  2kN
23...Nxf2! 24.Qxf2 f4 25.Ne2 Qc7
  ²  (0.34)   Depth: 4/11   00:00:00  4kN
23...h4!
  ²  (0.31)   Depth: 4/11   00:00:00  4kN
23...h4 24.Nf1 Nxf2 25.Qxf2 h3 26.Ne3 hxg2 27.Kxg2
  ²  (0.56)   Depth: 5/15   00:00:00  12kN
23...Nxf2!
  ²  (0.53)   Depth: 5/19   00:00:00  14kN
23...Nxf2! 24.Qxf2 f4 25.Ne2 f3 26.gxf3
  ²  (0.47)   Depth: 5/19   00:00:00  17kN
23...Nxf2 24.Qxf2 Re5 25.c6 Qc7 26.Qe3 f4
  ²  (0.34)   Depth: 6/16   00:00:00  32kN
23...Re5!
  ²  (0.31)   Depth: 6/18   00:00:00  59kN
23...Re5! 24.c6 Qc7 25.Rbc1 Rd8 26.Rc5 Nxf2 27.Qxf2
  =  (0.00)   Depth: 6/18   00:00:00  70kN
23...Re5 24.c6 Qc7 25.Rbc1 Rd8 26.Rc5 Nxf2 27.Qxf2
  =  (0.00)   Depth: 7/17   00:00:01  109kN
23...Re5!
  =  (-0.16)   Depth: 8/22   00:00:01  236kN
23...Re5! 24.c6 Qc7 25.a4 Nxf2 26.Qxf2 Rd8 27.axb5 axb5 28.Qc5
  =  (-0.19)   Depth: 8/24   00:00:01  330kN
23...Re5 24.d6 e3 25.Be1 f4 26.Bc3 fxg3 27.Bxe5 Bxe5
  =  (-0.25)   Depth: 9/25   00:00:04  1178kN

(Lee, N.B.I 05.01.2001)
Fritz Has yet to find this IM's move after 2 and a half hours on a 800Mhz athlon
i am trying it out with 184MB of hash tables which according to the fritzmark is
not as good as just 128Mb??? my computer has plenty of ram so this i don't
understand (256mb).



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