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Subject: Re: Testposition (tactical)

Author: Miguel A. Ballicora

Date: 15:59:48 09/18/01

Go up one level in this thread


On September 18, 2001 at 18:03:49, Slater Wold wrote:

>On September 18, 2001 at 17:00:40, Eduard Nemeth wrote:
>
>>Analysis E. Nemeth:
>>
>>[D]2qr3r/1p1n1ppk/p3p2p/5b2/2PP2NQ/6R1/P1B2PPP/R5K1 w - - 0 1
>>
>>1.) What is here "real" the strongest move?
>>2.) Can your program it find?
>>
>>Eduard
>
>Hard to argue with a +5.00 eval:
>
>Shredder 5.32 - W,S
>2qr3r/1p1n1ppk/p3p2p/5b2/2PP2NQ/6R1/P1B2PPP/R5K1 w - - 0 1
>
>Analysis by Shredder 5.32:
>
>1.Bxf5+ exf5 2.Ne3
>  ²  (0.67)   Depth: 1/2   00:00:00
>1.Bxf5+ exf5 2.Ne3 Nf6
>  ²  (0.67)   Depth: 1/2   00:00:00
>1.Bxf5+ exf5 2.Ne3 Nf6 3.Rd1
>  ±  (1.13)   Depth: 2/4   00:00:00
>1.Bxf5+ exf5 2.Ne3 Nf6 3.Rd1
>  ±  (1.13)   Depth: 2/4   00:00:00
>1.Bxf5+ exf5 2.Ne3 Nf6 3.Rd1
>  ±  (1.13)   Depth: 3/6   00:00:00
>1.Bxf5+ exf5 2.Ne3 Nf6 3.Rd1
>  ±  (1.13)   Depth: 4/8   00:00:00
>1.Bxf5+ exf5 2.Ne3 Nf6 3.Rf3 Rhe8 4.Rf4 b5 5.cxb5
>  ±  (1.09)   Depth: 5/10   00:00:00
>1.Bxf5+ exf5 2.Ne3 g6 3.Qe7 Rhf8 4.Rd1 Rde8
>  ±  (1.10)   Depth: 6/12   00:00:00  43kN
>1.Nxh6 gxh6 2.Qg4 Rhg8 3.Bxf5+ Kh8 4.Qh5 Nb6
>  ±  (1.11)   Depth: 6/12   00:00:00  54kN
>1.Nxh6 gxh6 2.Qg4 Rhg8 3.Bxf5+ exf5 4.Qxf5+ Kh8 5.Qxf7 Rxg3 6.hxg3 Rf8
>  ±  (1.40)   Depth: 6/12   00:00:00  78kN
>1.Nxh6 gxh6 2.Qg4 Rhg8 3.Bxf5+ exf5 4.Qxf5+ Kh8 5.Qxf7 Rxg3 6.hxg3 Rf8 7.Qe6
>  ±  (1.32)   Depth: 7/14   00:00:00  165kN
>1.Nxh6 gxh6 2.Qh5 Rhg8 3.Bxf5+ exf5 4.Qxf7+ Kh8 5.Rxg8+ Rxg8 6.Re1 Qc6
>  ±  (1.08)   Depth: 8/16   00:00:00  476kN
>1.Nxh6 gxh6 2.Qh5 Rhg8 3.Qxf7+ Kh8 4.Rh3 Rxg2+ 5.Kh1 Rg1+ 6.Rxg1 Qc6+ 7.d5 Qxd5+
>8.cxd5 Be4+ 9.Bxe4
>  ±  (1.33)   Depth: 9/18   00:00:02  1029kN
>1.Nxh6 gxh6 2.Qh5 Rhg8 3.Qxf7+ Kh8 4.Rh3 Rxg2+ 5.Kh1 Rg1+ 6.Rxg1 Qc6+ 7.d5 Qxd5+
>8.cxd5 Bxh3 9.dxe6
>  +-  (1.83)   Depth: 9/18   00:00:02  1071kN
>1.Nxh6 gxh6 2.Qh5 Ne5 3.dxe5 Qd7 4.Rd1 Bxc2 5.Rxd7 Rxd7 6.Kf1 Bg6 7.Qe2 Rhd8
>  +-  (3.69)   Depth: 9/18   00:00:04  2406kN
>1.Nxh6 gxh6 2.Qh5 Ne5 3.dxe5 Qd7 4.Rd1 Bxc2 5.Rxd7 Rxd7 6.h3 Bg6 7.Qe2 Rhd8
>8.Rb3
>  +-  (3.74)   Depth: 10/20   00:00:09  4975kN
>1.Nxh6 gxh6 2.Qh5 Ne5 3.dxe5 Qd7 4.Rd1 Bxc2 5.Rxd7 Rxd7 6.h3 Rhd8 7.Rc3 Bg6 8.c5
>Rd1+ 9.Qxd1
>  +-  (3.49)   Depth: 11/22   00:00:30  16640kN
>1.Nxh6 gxh6 2.Qh5 Ne5 3.dxe5 Qd7 4.Rd1 Bxc2 5.Rxd7 Rxd7 6.h3 Rhd8 7.Kh2 Bg6
>8.Qf3 b6 9.Qf6
>  +-  (3.43)   Depth: 11/22   00:00:39  21893kN
>1.Nxh6 gxh6 2.Qh5 Ne5 3.dxe5 Qd7 4.Rd1 Bxc2 5.Rxd7 Rxd7 6.h3 Bg6 7.Qg4 Rd2 8.Rb3
>Rb8 9.a3
>  +-  (3.64)   Depth: 12/24   00:01:40  54427kN
>1.Re1 Rhg8 2.Rh3 Bxc2 3.Qg5 Rgf8 4.Nxh6 Nf6 5.Nf5+ Nh5 6.Rxh5+ Kg8 7.Qxg7#
>  +-  (3.65)   Depth: 12/24   00:02:47  90065kN
>1.Re1 Rhg8 2.Rh3 Bxc2 3.Qg5 Rgf8 4.Nxh6 Nf6 5.Nf5+ Kg8 6.Qxg7#
>  +-  (4.00)   Depth: 12/24   00:03:09  101569kN
>1.Re1 Bxc2 2.Nxh6 g6 3.Nxf7+ Kg7 4.Nxh8 Rxh8 5.Qe7+ Kg8 6.Qxe6+ Kg7 7.Re2 Bb1
>8.Qd5 Re8 9.Rxe8 Qxe8 10.Qxb7
>  +-  (5.06)   Depth: 12/24   00:08:06  251730kN
>1.Re1 Bxc2 2.Nxh6 g6 3.Nxf7+ Kg7 4.Nxh8 Rxh8 5.Qe7+ Kg8 6.Qxe6+ Kg7 7.Qe7+ Kg8
>8.Qd6 Bf5 9.Rge3 Rh7 10.Re8+ Kf7 11.Rxc8
>  +-  (5.31)   Depth: 13/26   00:10:38  323304kN
>
>(W,  18.09.2001)
>
>
>
>Slate

It takes a while for Gaviota but finally finds it
(13 min in a pIII 700 mhz)
setboard 2qr3r/1p1n1ppk/p3p2p/5b2/2PP2NQ/6R1/P1B2PPP/R5K1 w - - 0 1
d
+-----------------+
| . . q r . . . r |
| . x . n . x x k |
| x . . . x . . x |
| . . . . . b . . |
| . . o o . . N Q |
| . . . . . . R . |
| o . B . . o o o |
| R . . . . . K . |
+-----------------+

   7762619   8:     65.6    +0.10  Bc2xf5   e6xf5    Ng4-e3   Nd7-f6
                                   Rg3-h3   Nf6-e4   d4-d5    b7-b5
                                   <-transp
  22062527   9     189.0    +0.15  Bc2xf5   e6xf5    Ng4-e3   Nd7-f6
                                   Rg3-g5   g7-g6    Rg5xf5   g6xf5
                                   Qh4xf6   Qc8-e6   Qf6xf5   Qe6-g6
                                   d4-d5    b7-b5    Qf5-f4   b5xc4
                                   Qf4xc4
  26680909   9     376.7      :-)  Ng4xh6
  27941635   9     386.9      :-)  Ng4xh6
  30211823   9     405.1    -0.01  Ng4xh6   g7xh6    Qh4-h5   Rh8-g8
                                   Bc2xf5   e6xf5    Qh5xf7   Kh7-h8
                                   Rg3xg8   Rd8xg8   Qf7xf5   Rg8-g5
                                   Qf5-d3   Nd7-b6   c4-c5    Nb6-d5
                                   Ra1-e1
  30433790   9     407.0    +0.15  Bc2xf5   e6xf5    Ng4-e3   <-transp
  40417227   9     493.1    +0.23  Rg3-h3   Kh7-g8   Bc2xf5   e6xf5
                                   Ng4-e3   Nd7-f6   Qh4-f4   g7-g6
                                   Ra1-b1   Nf6-e4   Qf4-e5
  73537681   9     781.9    +0.54  Ra1-e1   Rh8-g8   Rg3-h3   Bf5xc2
                                   Ng4xh6   g7-g5    Qh4-g4   Rd8-e8
                                   Nh6xf7   Kh7-g7   Nf7xg5
  87143888   9:    900.7    +0.54  Ra1-e1   Rh8-g8   Rg3-h3   Bf5xc2
                                   Ng4xh6   g7-g5    Qh4-g4   Rd8-e8
                                   Nh6xf7   Kh7-g7   Nf7xg5
  98555650  10    1000.9      :-)  Ra1-e1
 109904430  10    1100.3      :-)  Ra1-e1
 119823195  10    1189.2    +1.93  Ra1-e1   Bf5xc2   Ng4xh6   g7-g6
                                   Nh6xf7   Kh7-g7   Nf7xh8   Rd8xh8
                                   Qh4-e7   Kg7-g8   Qe7xe6   Kg8-g7
                                   Qe6-e7   Kg7-g8   Qe7-e8   Qc8xe8
                                   Re1xe8   Kg8-g7   Re8xh8   Kg7xh8
 171753827  10:   1615.9    +1.93  Ra1-e1   Bf5xc2   Ng4xh6   g7-g6
                                   Nh6xf7   Kh7-g7   Nf7xh8   Rd8xh8
                                   Qh4-e7   Kg7-g8   Qe7xe6   Kg8-g7
                                   Qe6-e7   Kg7-g8   Qe7-e8   Qc8xe8
                                   Re1xe8   Kg8-g7   Re8xh8   Kg7xh8




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