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Subject: Re: Test position ==> M.Tal - J.Bolbochan,Havana 1966

Author: Enrique Irazoqui

Date: 14:46:55 01/04/01

Go up one level in this thread


On January 04, 2001 at 16:10:23, José Antônio Fabiano Mendes wrote:

>    M.Tal - J.Bolbochan,Havana 1966
>  [D]r3r1k1/1p2bp1p/p1bpp1p1/q1n3P1/3BP2P/1BNR4/PPP1QP2/1K4R1 w
>   And here Tal played 18.h5 [Bolbochan replied 18...Nxb3]
>   Tal won in 34 moves [the complete score can be found at www.chesslab.com]
>   Can the chess programs find these two moves?[18...Nxd3 loses quickly] JAFM

On a P750 with 184MB hash, Deep Fritz doesn't play h5 in less than 5 minutes.
Once white plays h5, it discards Nxd3 in favor of Nxb3 after 75 seconds.

Enrique


New position
r3r1k1/1p2bp1p/p1bpp1p1/q1n3PP/3BP3/1BNR4/PPP1QP2/1K4R1 b - - 0 1

Analysis by DEEP FRITZ   :

1...Nxd3!
  =  (-0.25)   Depth: 1/3   00:00:00
1...Nxd3! 2.Qxd3
  µ  (-1.28)   Depth: 1/6   00:00:00
1...Nxd3 2.Qxd3 Bxg5
  µ  (-1.28)   Depth: 2/6   00:00:00
1...Nxd3 2.Qxd3 Bxg5 3.hxg6
  µ  (-1.28)   Depth: 3/10   00:00:00  1kN
1...Nxd3 2.Qxd3 Bxg5 3.hxg6 fxg6
  µ  (-1.28)   Depth: 4/16   00:00:00  2kN
1...Nxd3 2.Qxd3 Bxg5 3.hxg6 fxg6 4.Rh1
  µ  (-1.22)   Depth: 5/19   00:00:00  13kN
1...Nxd3 2.Qxd3 Bxg5 3.hxg6 fxg6 4.Qh3 Bd7
  µ  (-1.25)   Depth: 6/22   00:00:00  31kN
1...Nxd3 2.Qxd3 Bxg5 3.hxg6 fxg6 4.Qh3 Bd7 5.Rh1
  µ  (-1.22)   Depth: 7/24   00:00:00  88kN
1...Nxd3 2.hxg6 Nf4 3.gxh7+ Kxh7 4.Qg4 Bxg5 5.Qxg5 Qxg5 6.Rxg5
  µ  (-1.06)   Depth: 8/27   00:00:00  264kN
1...Nxd3 2.Qxd3 Bxg5 3.hxg6 hxg6 4.Rh1 e5 5.Qh3 Bh6 6.Qxh6 exd4
  µ  (-0.84)   Depth: 9/27   00:00:01  893kN
1...Nxd3--
  ³  (-0.53)   Depth: 10/27   00:00:03  1949kN
1...Nxd3--
  ³  (-0.53)   Depth: 10/32   00:00:04  2787kN
1...Nxd3 2.Qxd3 gxh5 3.f4 Rac8 4.Qh3 Qb4 5.Rd1 e5 6.a3 Qa5
  ³  (-0.38)   Depth: 11/32   00:00:13  8191kN
1...Nxd3--
  =  (-0.06)   Depth: 12/32   00:00:37  22319kN
1...Nxd3--
  =  (-0.06)   Depth: 12/35   00:00:54  32977kN
1...Nxb3!
  =  (-0.09)   Depth: 12/36   00:01:15  45732kN
1...Nxb3! 2.cxb3 Bb5 3.Nxb5 axb5 4.a3 b4 5.hxg6 fxg6 6.Qd2 d5 7.Rg4
  ³  (-0.56)   Depth: 12/38   00:01:41  61544kN

(Irazoqui, Cadaqués 04.01.2001)



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