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Subject: Re: just when you think all is lost...

Author: Richard Pijl

Date: 00:15:32 04/14/05

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On April 13, 2005 at 19:51:49, Mike Byrne wrote:

>Black(1): [d]6k1/6Pr/p4pKP/P4P2/1prpp3/2n1R3/3R4/8 w - - 0 1
>
>try it first, before feeding it to your engine

Story behind this position (and some analysis):
http://www.xs4all.nl/~timkr/chess2/diary.htm, scroll down to article 280.

The Baron 1.6.0 plays Rdd3 instantly, giving a draw score after 35 seconds (Xeon
2.8):

 ply       time        nodes   score  pv
  8(14)+   0:00.34    113069   -1.57  Rd2-d3 (b4-b3) (Rd3xd4) (Rh7xh6) (Kg6xh6)
                                      (Rc4xd4) (Re3xc3) (Rd4-d3) (Rc3-c8)
  8(14)+   0:00.44    150712   -0.32  Rd2-d3 (b4-b3) (Rd3xd4) (Rh7xh6) (Kg6xh6)
                                      (Rc4xd4) (Re3xc3) (Rd4-d3) (Rc3-c8)
  8(15)&   0:00.70    289207   -0.32  Rd2-d3 Rc4-c8 Rd3xd4 Rc8-b8 Rd4-d7
                                      b4-b3 Re3xc3 b3-b2 Rd7-d1
  8(15).   0:00.72    294582   -0.32  Rd2-d3 Rc4-c8 Rd3xd4 Rc8-b8 Rd4-d7
                                      b4-b3 Re3xc3 b3-b2 Rd7-d1
  9(17)&   0:01.00    393351   -0.13  Rd2-d3 b4-b3 Rd3xd4 Rc4xd4 Re3xc3
                                      Rd4-d8 Rc3xb3 Rd8-c8 Rb3-e3 Rc8-c4
  9(17).   0:01.03    404450   -0.13  Rd2-d3 b4-b3 Rd3xd4 Rc4xd4 Re3xc3
                                      Rd4-d8 Rc3xb3 Rd8-c8 Rb3-e3 Rc8-c4
 10(18)&   0:01.49    562185   -0.23  Rd2-d3 b4-b3 Rd3xd4 Rc4xd4 Re3xc3
                                      Rd4-d8 Rc3xb3 Rd8-c8 Rb3-e3 Rc8-c4 Re3-h3
 10(18).   0:01.52    573106   -0.23  Rd2-d3 b4-b3 Rd3xd4 Rc4xd4 Re3xc3
                                      Rd4-d8 Rc3xb3 Rd8-c8 Rb3-e3 Rc8-c4 Re3-h3
 11(19)&   0:02.78   1030512   -0.04  Rd2-d3 b4-b3 Rd3xd4 Rc4xd4 Re3xc3
                                      Rd4-d8 Rc3xb3 Rd8-c8 Rb3-b6 e4-e3 Rb6-e6
                                      Rc8-c7 (Re6xe3)
 11(19).   0:02.88   1061293   -0.04  Rd2-d3 b4-b3 Rd3xd4 Rc4xd4 Re3xc3
                                      Rd4-d8 Rc3xb3 Rd8-c8 Rb3-b6 e4-e3 Rb6-e6
                                      Rc8-c7 (Re6xe3)
 12(20)-   0:03.02   1117222   -0.34  Rd2-d3 (b4-b3) (Rd3xd4) (Rc4xd4) (Re3xc3)
                                      (Rd4-d8) (Rc3xb3) (Rd8-c8) (Rb3-b6) (Rc8-e
8) (Rb6xa6)
                                      (e4-e3)
 12(21)&   0:04.72   1730335   -0.35  Rd2-d3 b4-b3 Rd3xd4 Rc4xd4 Re3xc3
                                      Rd4-d8 Rc3xb3 Rd8-c8 Rb3-b6 Rc8-e8 Rb6xa6
                                      e4-e3 Ra6xf6 (e3-e2)
 12(21).   0:04.72   1735735   -0.35  Rd2-d3 b4-b3 Rd3xd4 Rc4xd4 Re3xc3
                                      Rd4-d8 Rc3xb3 Rd8-c8 Rb3-b6 Rc8-e8 Rb6xa6
                                      e4-e3 Ra6xf6 (e3-e2)
 13(22)&   0:06.42   2371474   -0.35  Rd2-d3 b4-b3 Rd3xd4 Rc4xd4 Re3xc3
                                      Rd4-d8 Rc3xb3 Rd8-c8 Rb3-b6 Rc8-e8 Rb6xa6
                                      e4-e3 Ra6xf6 e3-e2
 13(22).   0:06.67   2455124   -0.35  Rd2-d3 b4-b3 Rd3xd4 Rc4xd4 Re3xc3
                                      Rd4-d8 Rc3xb3 Rd8-c8 Rb3-b6 Rc8-e8 Rb6xa6
                                      e4-e3 Ra6xf6 e3-e2
 14(22)-   0:07.49   2746683   -0.65  Rd2-d3 (b4-b3) (Rd3xd4) (Rc4xd4) (Re3xc3)
                                      (Rd4-d8) (Rc3xb3) (Rd8-c8) (Rb3-b6) (Rc8-e
8) (Rb6xa6)
                                      (e4-e3) (Ra6xf6) (e3-e2)
 14(25)&   0:11.61   4209076   -0.81  Rd2-d3 b4-b3 Rd3xd4 Rc4xd4 Re3xc3
                                      Rd4-d8 Rc3xb3 Rd8-c8 Rb3-b6 Rc8-e8 Rb6-b2
                                      e4-e3 Rb2-e2 Re8-e4 Re2-e1
 14(25).   0:11.95   4363064   -0.81  Rd2-d3 b4-b3 Rd3xd4 Rc4xd4 Re3xc3
                                      Rd4-d8 Rc3xb3 Rd8-c8 Rb3-b6 Rc8-e8 Rb6-b2
                                      e4-e3 Rb2-e2 Re8-e4 Re2-e1
 15(27)+   0:18.48   6919681   -0.51  Rd2-d3 (b4-b3) (Rd3xd4) (Rc4xd4) (Re3xc3)
                                      (Rd4-d8) (Rc3xb3) (Rd8-c8) (Rb3-b6) (Rc8-e
8) (Rb6-e6)
                                      (Re8xe6) (f5xe6) (e4-e3) (e6-e7)
 15(27)&   0:35.48  13727817   +0.00  Rd2-d3 b4-b3 Rd3xd4 Rc4xd4 Re3xc3
                                      Rd4-d8 Rc3xb3 Rd8-e8 Rb3-e3 Re8-e5 Re3-b3
                                      Re5-e8 <rep>
 15(27).   0:36.98  14183331   +0.00  Rd2-d3 b4-b3 Rd3xd4 Rc4xd4 Re3xc3
                                      Rd4-d8 Rc3xb3 Rd8-e8 Rb3-e3 Re8-e5 Re3-b3
                                      Re5-e8 <rep>
 16(29)&   1:06.22  24751513   +0.00  Rd2-d3 b4-b3 Rd3xd4 Rc4xd4 Re3xc3
                                      Rd4-d8 Rc3xb3 Rd8-e8 Rb3-e3 Re8-e5 Re3-b3
                                      Re5-e8 <rep>



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