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Subject: Re: avoid move position

Author: Tim Foden

Date: 00:26:57 03/17/04

Go up one level in this thread


On March 16, 2004 at 23:27:05, Jon Dart wrote:

>From a game Amateur-Arasan:
>
>[D] r1br3k/1p3pp1/p1n1pn1p/2b1N3/Pq1P4/2N3B1/BP1Q1PPP/3RR1K1 b - -
>
>Nxe5 is the right capture .. avoid Rxd4.
>
>--Jon

GLC 3.00 avoids Rxd4 after 0.2 seconds, but also avoids Nxe5 after 15 seconds,
finally preferring Kg8, with a -0.584 score for black after 9:30.

Cheers, Tim.

Analysis: GLC 3.00, 24MB hash, AXP 2.1GHz...

>anal
 Game stage: Opening
 Current eval: -0.658
 Ply   Time   Score   Nodes  Principal variation
  4   0.010  +0.469    7074  Rxd4 2. Nd3 Qa5 3. Bf4
  4   0.010  +0.469    8481  Rxd4 2. Nd3 Qa5 3. Bf4
  5   0.040  +0.613   31965  Rxd4 2. Qc2 Kg8 3. Nd3 Qb6 4. Nxc5 Qxc5
  5   0.040  +0.613   37331  Rxd4 2. Qc2 Kg8 3. Nd3 Qb6 4. Nxc5 Qxc5
  6   0.120  +0.213  103131  Rxd4 {--} 2. Nxf7+ Kg8 3. Nxh6+ gxh6 4. Qxh6 Qxb2
                               5. Qg5+ Kh7 6. Qxc5
  6   0.140  -0.133  124484  Rxd4 2. Nxf7+ Kg8 3. Nxh6+ gxh6 4. Qxh6 Rxd1 5.
                               Rxd1 Ne4
  6   0.191  -0.129  171286  Nxe5 2. Bxe5 Ng4 3. Ne4 Qxd2 4. Rxd2 Bb4 5. Nc3
                               Nxe5 6. Rxe5
  6   0.251  -0.129  230729  Nxe5 2. Bxe5 Ng4 3. Ne4 Qxd2 4. Rxd2 Bb4 5. Nc3
                               Nxe5 6. Rxe5
  7   0.371  -0.129  350127  Nxe5 2. Bxe5 Ng4 3. Ne4 Qxd2 4. Rxd2 Bb4 5. Nc3
                               Nxe5 6. Rxe5
  7   0.591  -0.129  572595  Nxe5 2. Bxe5 Ng4 3. Ne4 Qxd2 4. Rxd2 Bb4 5. Nc3
                               Nxe5 6. Rxe5
  8   0.872  -0.097  875186  Nxe5 2. Bxe5 Ng4 3. Bxg7+ Kxg7 4. Re4 Nxh2 5. Kxh2
                               Bd6+ 6. Kg1 Bd7
  8   1.462  -0.097 1504023  Nxe5 2. Bxe5 Ng4 3. Bxg7+ Kxg7 4. Re4 Nxh2 5. Kxh2
                               Bd6+ 6. Kg1 Bd7
  9   2.324  -0.181 2400997  Nxe5 2. Bxe5 Ng4 3. Bxg7+ Kxg7 4. Re4 f5 5. dxc5
                               Rxd2 6. Rxb4 Rxf2
  9   4.447  -0.181 4522618  Nxe5 2. Bxe5 Ng4 3. Bxg7+ Kxg7 4. Re4 f5 5. dxc5
                               Rxd2 6. Rxb4 Rxf2
 10  10.495  -0.568  10738k  Nxe5 2. Bxe5 Ng4 3. Bxg7+ Kxg7 4. Re4 Nf6 5. dxc5
                               Nxe4 6. Qxd8 Nxc3 7. bxc3 Qxa4
 10  14.832  -0.355  15545k  Kg8 2. Nxc6 bxc6 3. Be5 Ng4 4. Bxg7 Kxg7 5. Re4
                               Nxh2 6. Kxh2 a5
 10  16.544  -0.355  17503k  Kg8 2. Nxc6 bxc6 3. Be5 Ng4 4. Bxg7 Kxg7 5. Re4
                               Nxh2 6. Kxh2 a5
 11  22.743  -0.273  24057k  Kg8 2. Nxc6 bxc6 3. Be5 Ng4 4. Bxg7 Kxg7 5. Re4
                               Nxh2 6. Kxh2 Bd6+ 7. Kg1 Bb7
 11  29.533  -0.273  30899k  Kg8 2. Nxc6 bxc6 3. Be5 Ng4 4. Bxg7 Kxg7 5. Re4
                               Nxh2 6. Kxh2 Bd6+ 7. Kg1 Bb7
 12  47.128  -0.320  50757k  Kg8 2. Nxc6 bxc6 3. Be5 Ng4 4. Bxg7 Kxg7 5. Re4 e5
                               6. dxc5 Rxd2 7. Rxb4 Rxf2
 12 1:05.33  -0.320  69761k  Kg8 2. Nxc6 bxc6 3. Be5 Ng4 4. Bxg7 Kxg7 5. Re4 e5
                               6. dxc5 Rxd2 7. Rxb4 Rxf2
 13 2:20.87  -0.396 150578k  Kg8 2. Nxc6 bxc6 3. Be5 Be7 4. Bb1 Ng4 5. Qc2 f5
                               6. Na2 Qb6 7. a5 Qb5 8. Bf4
 13 3:14.58  -0.396 208120k  Kg8 2. Nxc6 bxc6 3. Be5 Be7 4. Bb1 Ng4 5. Qc2 f5
                               6. Na2 Qb6 7. a5 Qb5 8. Bf4
 14 5:20.75  -0.584 350282k  Kg8 2. Nxc6 bxc6 3. Be5 Be7 4. Bxf6 Bxf6 5. Nd5
                               Qxa4 6. Nxf6+ gxf6 7. b3 Qa3 8. Bb1 Qf8 9. Qc2
                               f5 10. Qxc6
 14 9:30.99  -0.584 612694k  Kg8 2. Nxc6 bxc6 3. Be5 Be7 4. Bxf6 Bxf6 5. Nd5
                               Qxa4 6. Nxf6+ gxf6 7. b3 Qa3 8. Bb1 Qf8 9. Qc2
                               f5 10. Qxc6
Analyse>exit
 local:  t=9:39.77  nps=1072797.5  n=621980123 (15.7% / 84.3%)
 total:  t=9:39.77  nps=1072797.5  n=621980123
 stats:  fh=91.6%/3.61%/1.119%  draws=52832
 trans:  probes=97323424  hits=6910855 (7.10%)  draft=5238346 (5.38%)
 tcuts:  exact=389 (0.00%)  upper=2691249 (2.77%)  lower=1935772 (1.99%)
 tstor:  exact=678 (0.00%)  upper=31245496 (69.51%)  lower=13706696 (30.49%)
 ext:  check=17363594  recap=2390050  ppush=92504  1rep=1381044  thrt=0
 q-moves:  gen=680512652  tested=281727155  made/un=114032592  max-dep=14
 max eval diff:  part-1=3.504  part-2=3.359



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