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Subject: Re: testposition - .....Ne5!

Author: Richard Pijl

Date: 08:13:18 12/19/02

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On December 18, 2002 at 19:13:59, bobby palacios wrote:

>[D] 2k2b1r/1pp5/p1nr1p2/3p2pq/3P2b1/P3PNP1/1P1BQPB1/R2R2K1 b - - 0 26
>
>In this game Junior 7 played Ne5, sacrificing the knight to get rid of the key
>defender at f3.  Gambit Tiger 2.0 (aggr) didnt know what hit it, and soon
>resigned a few moves later.  Other moves such as Re6 and f5 are good too, but
>Ne5 is the quickest to the win.  What does your engine choose?

A Mobile PII-500 is certainly not fast enough to find it with the Baron within
reasonable time.
It took the Baron exactly one hour to select Ne5.

 ply       time     nodes  score  pv

  4( 8)&      0      4125    110  d6e6 d2c3 g4h3 a1c1
  4( 9).      0      7860    110  d6e6 d2c3 g4h3 a1c1
  5( 8)&      0     12817    118  d6e6 d2c3 g4h3 a1c1 h5e8
  5(10).      0     27869    118  d6e6 d2c3 g4h3 a1c1 h5e8
  6(10)&      0     43763    115  d6e6 d2c3 h5e8 g1f1 h8h2 a1c1
  6(12)&      0     96324    117  g4h3 e2f1 h3f5 a1c1 f5e4 f1e2
  6(14).      1    108181    117  g4h3 e2f1 h3f5 a1c1 f5e4 f1e2
  7(12)&      1    148691    120  g4h3 e2f1 h3f5 f1e2 g5g4 f3h4 f5c2
  7(14)&      2    242399    134  d6e6 d2c3 g4h3 g2h3 h5h3
  7(16).      2    294293    134  d6e6 d2c3 g4h3 g2h3 h5h3
  8(16)&      5    512578    126  d6e6 d2c3 f6f5 g1f1 g4h3 g2h3 h5h3 f1e1 f8e7
  8(17)&     12   1205556    142  f6f5 d2b4 c6b4 a3b4 f5f4 g3f4 g5f4 e3f4 g4d7
  8(17).     12   1272301    142  f6f5 d2b4 c6b4 a3b4 f5f4 g3f4 g5f4 e3f4 g4d7
  9(18)&     22   2174475    160  f6f5 d2b4 g4f3 e2f3 g5g4 f3f4 f8h6 b4d6 h6f4
  9(18).     30   3002055    160  f6f5 d2b4 g4f3 e2f3 g5g4 f3f4 f8h6 b4d6 h6f4
 10(19)&     58   6080956    165  f6f5 d1e1 d6e6 e2d1 f5f4 e3f4 e6e1 d2e1 g5f4
g3f4
 10(21).     75   8114326    165  f6f5 d1e1 d6e6 e2d1 f5f4 e3f4 e6e1 d2e1 g5f4
g3f4
 11(22)+    166  16686968    195  f6f5
 11(22)&    299  30675251    207  f6f5 d2b4 c6b4 a3b4 d6h6 d1c1 f8d6 e2d3 c8b8
d3d1 d6b4
 11(22).    359  37683629    207  f6f5 d2b4 c6b4 a3b4 d6h6 d1c1 f8d6 e2d3 c8b8
d3d1 d6b4
 12(23)&    991 104841727    226  f6f5 b2b4 d6e6 d2c3 f5f4 b4b5 a6b5 a1b1 f4g3
f2g3 e6f6
 12(24).   1121 119862776    226  f6f5 b2b4 d6e6 d2c3 f5f4 b4b5 a6b5 a1b1 f4g3
f2g3 e6f6
 13(24)&   2982 302934817    230  f6f5 d1e1 d6e6 e2d1 f5f4 e3f4 c6d4 f3d4 h5h2
g1f1 g4h3 e1e6 h2g2 f1e2
 13(24)&   3594 370869681    242  c6e5 d4e5 f6e5 d2c3 e5e4 c3h8 e4f3 e2d3 f3g2
f2f3
 13(24).   3630 374465538    242  c6e5 d4e5 f6e5 d2c3 e5e4 c3h8 e4f3 e2d3 f3g2
f2f3
 14(25)+   4124 425402366    272  c6e5
 14(26)&   4608 477612696    282  c6e5 d4e5 f6e5 d2c3 e5e4 c3h8 d6h6 f3d4 g4e2
d4e2 h5e2 h8c3
 14(26).   5607 588360118    282  c6e5 d4e5 f6e5 d2c3 e5e4 c3h8 d6h6 f3d4 g4e2
d4e2 h5e2 h8c3

Richard



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