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Subject: Re: Capablanca's move Bxe6 !!

Author: Dann Corbit

Date: 16:30:09 08/21/02

Go up one level in this thread


On August 21, 2002 at 17:35:08, Christophe Drieu wrote:

>In 15 minutes, Shredder 6.02 couldn't find the sacrifice on my machine. What
>says your favorite engine ?
>
>P3 500Mhz Hash=32Mo
>
>Alekhine,A - Capablanca,J
>[D]b1r2r2/4k3/np2p2p/p1n1Pp2/N4PpP/PB2K1N1/1PR3P1/2R5 w - - 0 1
>
>Analysis by Fritz 7:
>
>32.Fa2 Fxg2 33.Cxb6 Tb8 34.b4 axb4 35.axb4 Txb6 36.bxc5
>  ²  (0.59)   Profondeur: 7/22   00:00:00  113kN
>32.Fa2 Tb8 33.Fc4 Cc7 34.Cc3 Tfd8 35.b4 axb4 36.axb4
>  ²  (0.56)   Profondeur: 8/22   00:00:00  221kN
>32.Fa2 Tb8 33.Cc3 Tfd8 34.Fc4 Cc7 35.b4 axb4 36.axb4 b5
>  ²  (0.69)   Profondeur: 9/27   00:00:01  494kN
>32.Fa2 Tb8 33.Cc3 b5 34.Cce2 Ce4 35.b4 axb4 36.axb4 Cxb4 37.Tc7+ Re8 38.Fxe6
>Cd5+ 39.Fxd5
>  ²  (0.56)   Profondeur: 10/27   00:00:03  940kN
>32.Fa2 Tb8 33.Cc3 Tfd8 34.Fc4 Fc6 35.Fxa6 Cxa6 36.Ch5 Cc5 37.Cf6 Tbc8
>  ²  (0.53)   Profondeur: 11/28   00:00:07  2065kN
>32.Fa2 Tb8 33.Fc4 Cc7 34.Cc3 a4 35.Cb5 Cxb5 36.Fxb5 Tbd8
>  ²  (0.47)   Profondeur: 12/30   00:00:17  4595kN
>32.Fa2 Tb8 33.Cxc5 bxc5 34.Fc4 Cc7 35.Fa2 Ca6 36.Fc4 Cc7 37.Fa2 Ca6 38.Fc4 Cc7
>39.Fa2
>  ²  (0.50)   Profondeur: 13/31   00:00:39  10871kN
>32.Fa2 Tb8 33.Cxc5 bxc5 34.Td1 Tfd8 35.Txd8 Txd8 36.Fc4 Cc7 37.Fa2 Ca6 38.Fc4
>Cc7 39.Fa2
>  ²  (0.31)   Profondeur: 14/37   00:01:26  23846kN
>32.Fxe6!
>  ²  (0.34)   Profondeur: 14/39   00:02:49  46673kN
>32.Fxe6! Rxe6 33.Cxb6 Tc6 34.Cxa8 Txa8 35.Ch5 Rf7 36.b4 Rg6 37.b5 Tb6 38.bxa6
>Cb3
>  ²  (0.41)   Profondeur: 14/39   00:03:00  49904kN

Pepito does not find it:

Tiempo por problema (segs) ? 999
CONTROL_IN 20000


    +----+----+----+----+----+----+----+----+
 8  | *B |    | *R |    |    | *R |    |    |
    +----+----+----+----+----+----+----+----+
 7  |    |    |    |    | *K |    |    |    |
    +----+----+----+----+----+----+----+----+
 6  | *N | *P |    |    | *P |    |    | *P |
    +----+----+----+----+----+----+----+----+
 5  | *P |    | *N |    |  P | *P |    |    |
    +----+----+----+----+----+----+----+----+
 4  |  N |    |    |    |    |  P | *P |  P |
    +----+----+----+----+----+----+----+----+
 3  |  P |  B |    |    |  K |    |  N |    |
    +----+----+----+----+----+----+----+----+
 2  |    |  P |  R |    |    |    |  P |    |
    +----+----+----+----+----+----+----+----+
 1  |    |    |  R |    |    |    |    |    |
    +----+----+----+----+----+----+----+----+
      a    b    c    d    e    f    g    h

 5    12    15    12656  Na4xc5 Na6xc5 Bb3-c4 Rf8-d8 Ke3-f2 Ke7-f8
 5    12    17    22031  Na4xc5 Na6xc5 Bb3-c4 Rf8-d8 Ke3-f2 Ke7-f8
 6    11    20    31136  Na4xc5 Na6xc5 Bb3-c4 Ba8-c6 Ke3-f2 b5 Bc4-a2
 6    22    24    46473  Bb3-c4 Nc5xa4 Bc4xa6 Rc8-c5 b4 a5xb4 a3xb4
 6    22    28    62595  Bb3-c4 Nc5xa4 Bc4xa6 Rc8-c5 b4 a5xb4 a3xb4
 7     9    31    74740  Bb3-c4 Nc5xa4 Bc4xa6 Rc8xc2 Rc1xc2 Na4-c5 Ba6-c4 Rf8-d8
 7     9    51   150754  Bb3-c4 Nc5xa4 Bc4xa6 Rc8xc2 Rc1xc2 Na4-c5 Ba6-c4 Rf8-d8
 8    12    59   186912  Bb3-c4 Nc5xa4 Bc4xa6 Rc8xc2 Rc1xc2 Na4-c5 Ba6-c4 Rf8-d8
Ke3-f2
 8    12    93   329894  Bb3-c4 Nc5xa4 Bc4xa6 Rc8xc2 Rc1xc2 Na4-c5 Ba6-c4 Rf8-d8
Ke3-f2
 9     4   110   403106  Bb3-c4 Nc5xa4 Bc4xa6 Rc8xc2 Rc1xc2 Ba8-d5 Ke3-f2 Rf8-a8
Ba6-b5 Na4-c5
 9     4   266  1086194  Bb3-c4 Nc5xa4 Bc4xa6 Rc8xc2 Rc1xc2 Ba8-d5 Ke3-f2 Rf8-a8
Ba6-b5 Na4-c5
10     8   308  1270703  Bb3-c4 Nc5xa4 Bc4xa6 Rc8xc2 Rc1xc2 Rf8-d8 Rc2-c7 Rd8-d7
Rc7xd7 Ke7xd7 Ba6-b5 Ba8-c6 Bb5xa4 Bc6xa4 Ke3-d4 Ba4-c6
10     8   541  2279409  Bb3-c4 Nc5xa4 Bc4xa6 Rc8xc2 Rc1xc2 Rf8-d8 Rc2-c7 Rd8-d7
Rc7xd7 Ke7xd7 Ba6-b5 Ba8-c6 Bb5xa4 Bc6xa4 Ke3-d4 Ba4-c6
11    -3   595  2515505  Bb3-c4 Nc5xa4 Bc4xa6 Rc8xc2 Rc1xc2 Na4-c5 Ba6-b5 Rf8-d8
b4 a5xb4 a3xb4 Nc5-e4 Ng3xe4 Ba8xe4
11     4  1695  7221346  Bb3-a2 Ba8xg2 Na4xb6 Rc8-b8 b4 a5xb4 a3xb4 Nc5-e4
Rc2xg2 Ne4xg3 Rg2xg3 Rb8xb6
11     4  1750  7449788  Bb3-a2 Ba8xg2 Na4xb6 Rc8-b8 b4 a5xb4 a3xb4 Nc5-e4
Rc2xg2 Ne4xg3 Rg2xg3 Rb8xb6
12     0  2251  9432438  Bb3-a2 Ba8xg2 Na4xb6 Rc8-b8 b4 a5xb4 a3xb4 Nc5-e4
Ng3xe4 Bg2xe4 Nb6-c8 Ke7-f7 Nc8-d6 Kf7-e7 Nd6-c8
12     0  3212 13442873  Bb3-a2 Ba8xg2 Na4xb6 Rc8-b8 b4 a5xb4 a3xb4 Nc5-e4
Ng3xe4 Bg2xe4 Nb6-c8 Ke7-f7 Nc8-d6 Kf7-e7 Nd6-c8
13     3  4133 17101966  Bb3-a2 Ba8xg2 Na4xb6 Rc8-b8 b4 a5xb4 a3xb4 Nc5-e4
Ng3xe4 Bg2xe4 Nb6-c8 Ke7-f7 Nc8-d6 Kf7-e7 Nd6xe4 f5xe4 Rc2-c6
13     3  5807 24246644  Bb3-a2 Ba8xg2 Na4xb6 Rc8-b8 b4 a5xb4 a3xb4 Nc5-e4
Ng3xe4 Bg2xe4 Nb6-c8 Ke7-f7 Nc8-d6 Kf7-e7 Nd6xe4 f5xe4 Rc2-c6
14    24 13665 54559548  Bb3-a2 Rc8-b8 Na4xc5 b6xc5 Ba2-c4 Na6-c7 Ng3-h5 Ba8-e4
Rc2-e2 Rf8-d8 Nh5-f6 Be4-c6 Ke3-f2 Ke7-f8 g3
14    24 15932 63976769  Bb3-a2 Rc8-b8 Na4xc5 b6xc5 Ba2-c4 Na6-c7 Ng3-h5 Ba8-e4
Rc2-e2 Rf8-d8 Nh5-f6 Be4-c6 Ke3-f2 Ke7-f8 g3
15    19 25761 101062219  Bb3-a2 Rc8-b8 Na4xc5 b6xc5 Ba2-c4 Na6-c7 Ng3-h5 Ba8-e4
Rc2-e2 Rf8-c8 g3 Rc8-d8 Nh5-f6 Be4-f3 Re2-c2
15    19 35978 141144730  Bb3-a2 Rc8-b8 Na4xc5 b6xc5 Ba2-c4 Na6-c7 Ng3-h5 Ba8-e4
Rc2-e2 Rf8-c8 g3 Rc8-d8 Nh5-f6 Be4-f3 Re2-c2
16    13 77459 272392318  Bb3-a2 Rc8-b8 Ba2-c4 Nc5xa4 Bc4xa6 Na4-c5 Ba6-b5 a4
Ke3-f2 Rf8-d8 Kf2-g1 Ba8-d5 Ng3-e2 Bd5-e4 Rc2-c4 Rd8-d2
16    18 90668 327732760  Bb3-c4 Nc5xa4 Bc4xa6 Rc8xc2 Rc1xc2 Na4-c5 Ba6-b5
Rf8-d8 b4 a5xb4 a3xb4 Nc5-d7 Ke3-f2 Ba8-b7 Rc2-c7 Bb7-d5 h5

Time spent: 999.02
Depth reached: 15.613
Nodes per second: 366319.00480455
Interior nodes: 133983461
Quiescent nodes: 231976543
First_success: 23183961/26110885  (88.790 %).
BranchingFactor: 2.143
Null-moves: 64784216/79410589  (81.581 %).
Hash hits: 39000320/133983461  (29.108 %).
EGTB hits: 0/0  (0.000 %).
Pawn Hash hits: 231311324/231976543  (99.713 %).
Futility cut-offs: 132667811.
IID: 0.
Evals:  231976543.  Lazy:  160453977. (69.168 %). Cached:   12351750. (17.270
%).
Extensions:   CHK  19636747.  MRL  104850.  RCP  146527.
MaxPosB:   139, MaxPosN: 138
Voy por el problema 1. Resueltos:   0



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