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Subject: Re: Testposition "make" a Blunder !

Author: Richard Pijl

Date: 04:36:58 04/07/05

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On April 06, 2005 at 21:29:55, Eduard Nemeth wrote:

>First the nice game of Hydra/Scylla:
>
>[Event "10m+10s"]
>[Site "playchess.com"]
>[Date "2005.04.07"]
>[Round "?"]
>[White "Zor_champ, Hydra/Scylla_1.03C"]
>[Black "Revenge, Shredder 9"]
>[Result "1-0"]
>[ECO "B85"]
>[WhiteElo "2830"]
>[BlackElo "2790"]
>[PlyCount "55"]
>[EventDate "2005.??.??"]
>
>1. e4 {0} c5 {0} 2. Nf3 {0} d6 {0} 3. d4 {0} cxd4 {0} 4. Nxd4 {0} Nf6 {0} 5.
>Nc3 {0} a6 {0} 6. Be2 {0} e6 {0} 7. Be3 {0} Nc6 {0} 8. O-O {0} Be7 {0} 9. f4 {0
>} O-O {0} 10. a4 {0} Qc7 {0} 11. Nb3 {0} b6 {0} 12. Bf3 {0} Bb7 {0} 13. Qe2 {
>0.07/15 28} Rab8 {0} 14. Qf2 {0.11/16 42} Nd7 {-0.03/14 28} 15. Rad1 {
>0.11/16 32} Rbd8 {0} 16. Rd2 {0.26/15 43} Nc5 {0.08/14 33} 17. Rfd1 {0.26/15 22
>} Qc8 {0.12/14 17} 18. Qg3 {0.35/15 27} Qc7 {0.01/14 8} 19. f5 {0.29/16 26} Bf6
>{-0.16/14 44} 20. a5 {0.28/17 1} Nxa5 {-0.08/15 46} 21. Nxa5 {0.20/17 27} Bxc3
>{0.07/16 34} 22. bxc3 {0.52/18 2} bxa5 {0.12/17 39} 23. f6 {1.41/18 1} g6 {
>1.96/16 151} 24. e5 {1.83/20 0} Bxf3 {2.19/16 41} 25. gxf3 {1.83/19 7} Kh8 {
>2.19/16 20} 26. Qg5 {2.39/18 11} Nd7 {1.95/16 32} 27. Rxd6 {2.58/19 0} Rg8 {
>3.67/17 158} 28. Kg2 {
>Revenge,Shredder 9 resigns  (Lag: Av=0.81s, max=1.8s) 3.17/20 0} 1-0
>
>Testpostition:
>
>[D]3r1rk1/1bq2ppp/pp1ppb2/N1n2P2/4P3/2N1BBQ1/1PPR2PP/3R2K1 b - -
>
>Which program need not play here 21...Bxs3???
>

The Baron 1.6.0 on a Xeon 2.8 does not consider Bxc3 at all, and goes
immediately for Be5 and sticks to it:

 ply       time        nodes   score  pv
  5( 8)&   0:00.53    111395   +0.35  Bf6-e5 Be3-f4 Be5xf4 Qg3xf4 b6xa5
                                      Rd2xd6 (e6xf5)
  5( 8).   0:00.59    124697   +0.35  Bf6-e5 Be3-f4 Be5xf4 Qg3xf4 b6xa5
                                      Rd2xd6 (e6xf5)
  6(10)&   0:00.70    151488   +0.35  Bf6-e5 Be3-f4 Be5xf4 Qg3xf4 b6xa5
                                      Rd2xd6 (e6xf5)
  6(10).   0:01.09    236466   +0.35  Bf6-e5 Be3-f4 Be5xf4 Qg3xf4 b6xa5
                                      Rd2xd6 (e6xf5)
  7(11)&   0:01.50    338764   +0.16  Bf6-e5 Qg3-f2 b6xa5 Be3xc5 d6xc5
                                      Rd2xd8 Rf8xd8 Rd1xd8 Qc7xd8 Qf2xc5
  7(12).   0:02.56    583448   +0.16  Bf6-e5 Qg3-f2 b6xa5 Be3xc5 d6xc5
                                      Rd2xd8 Rf8xd8 Rd1xd8 Qc7xd8 Qf2xc5
  8(12)&   0:03.44    811536   +0.21  Bf6-e5 Qg3-f2 b6xa5 Be3xc5 d6xc5
                                      Rd2xd8 Rf8xd8 Rd1xd8 Qc7xd8 f5xe6 f7xe6
  8(14).   0:05.53   1311873   +0.21  Bf6-e5 Qg3-f2 b6xa5 Be3xc5 d6xc5
                                      Rd2xd8 Rf8xd8 Rd1xd8 Qc7xd8 f5xe6 f7xe6
  9(13)&   0:08.64   2072870   +0.21  Bf6-e5 Qg3-f2 b6xa5 Be3xc5 d6xc5
                                      Rd2xd8 Rf8xd8 Rd1xd8 Qc7xd8 f5xe6 f7xe6
                                      Qf2xc5
  9(15).   0:12.16   2952944   +0.21  Bf6-e5 Qg3-f2 b6xa5 Be3xc5 d6xc5
                                      Rd2xd8 Rf8xd8 Rd1xd8 Qc7xd8 f5xe6 f7xe6
                                      Qf2xc5
 10(15)&   0:18.00   4465743   +0.28  Bf6-e5 Be3-f4 Be5xf4 Qg3xf4 b6xa5
                                      f5-f6 e6-e5 Qf4-g3 Nc5-e6 Bf3-h5
 10(15).   0:25.25   6301774   +0.28  Bf6-e5 Be3-f4 Be5xf4 Qg3xf4 b6xa5
                                      f5-f6 e6-e5 Qf4-g3 Nc5-e6 Bf3-h5
 11(17)&   0:36.94   9309797   +0.22  Bf6-e5 Be3-f4 Be5xf4 Qg3xf4 b6xa5
                                      f5-f6 e6-e5 Qf4-g3 Nc5-e6 f6xg7 Qc7-c5
                                      Rd2-d4 Ne6xg7
 11(17).   0:57.79  14391620   +0.22  Bf6-e5 Be3-f4 Be5xf4 Qg3xf4 b6xa5
                                      f5-f6 e6-e5 Qf4-g3 Nc5-e6 f6xg7 Qc7-c5
                                      Rd2-d4 Ne6xg7
 12(20)&   1:22.89  21132606   +0.12  Bf6-e5 Be3-f4 Be5xf4 Qg3xf4 b6xa5
                                      f5-f6 e6-e5 Qf4-g3 Nc5-e6 Bf3-g4 Qc7-b6
                                      Kg1-h1 Ne6-g5
 12(20).   2:18.35  35263255   +0.12  Bf6-e5 Be3-f4 Be5xf4 Qg3xf4 b6xa5
                                      f5-f6 e6-e5 Qf4-g3 Nc5-e6 Bf3-g4 Qc7-b6
                                      Kg1-h1 Ne6-g5
 13(22)&   3:10.37  48804427   +0.00  Bf6-e5 Be3-f4 Be5xf4 Qg3xf4 b6xa5
                                      f5-f6 e6-e5 Qf4-g3 Nc5-e6 Bf3-g4 Qc7-b6
                                      Rd2-f2 Qb6-c7 Rf2-d2 <rep>
 13(22).   5:27.53  83111953   +0.00  Bf6-e5 Be3-f4 Be5xf4 Qg3xf4 b6xa5
                                      f5-f6 e6-e5 Qf4-g3 Nc5-e6 Bf3-g4 Qc7-b6
                                      Rd2-f2 Qb6-c7 Rf2-d2 <rep>
 14(25)&   8:21.21 126876541   +0.10  Bf6-e5 Be3-f4 Be5xf4 Qg3xf4 b6xa5
                                      Rd2xd6 e6xf5 e4-e5 Rd8-b8 Bf3xb7 Qc7xb7
                                      b2-b3 Nc5-e4 Nc3xe4
 14(25).  12:08.84 181679665   +0.10  Bf6-e5 Be3-f4 Be5xf4 Qg3xf4 b6xa5
                                      Rd2xd6 e6xf5 e4-e5 Rd8-b8 Bf3xb7 Qc7xb7
                                      b2-b3 Nc5-e4 Nc3xe4
 15(28)&  18:53.94 284276733   +0.23  Bf6-e5 Be3-f4 Be5xf4 Qg3xf4 b6xa5
                                      f5-f6 e6-e5 Qf4-g3 g7-g6 Rd2-f2 Qc7-b6
                                      b2-b3 Nc5-e6 Nc3-d5 Bb7xd5
 15(28).  24:05.55 359874070   +0.23  Bf6-e5 Be3-f4 Be5xf4 Qg3xf4 b6xa5
                                      f5-f6 e6-e5 Qf4-g3 g7-g6 Rd2-f2 Qc7-b6
                                      b2-b3 Nc5-e6 Nc3-d5 Bb7xd5
Richard.



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