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Subject: Re: Testposition for CM 9000

Author: Roy Eassa

Date: 10:20:39 07/25/02

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On July 23, 2002 at 16:44:55, Thomas Lagershausen wrote:

>[D]r4rk1/pb1q1pb1/1p2p1p1/n1p3Bp/3PPN1P/2PB1Q2/P4PP1/3RK2R w K - bm Nxh5
>
>after gxh5 2.Bf6 and white is winning !!
>
>Fritz 7.008 and Junior 7 are not able in 10 minutes to find the right move on my
>Athlon 1,5 Ghz.
>
>CM 8000 with Werner Schüle settings is finding 1.Nxh5 ! in 6 Min.39sec.
>


Having trouble seeing the win in all variations.  Some possibilities:

1.Nxh5 gxh5 2.Bf6 e5!

   [2...Bxf6 3.Qxf6 Rfd8
      (3...Rfe8 4.Qh6 f6 5.Rh3 Re7 6.Bb5! Bc6 7.Bxc6 Nxc6 8.Rg3+ Rg7
       9.Rdd3! Rg4 10.Qxh5 f5 11.Rxg4+ fxg4 12.Qxg4+ Kh8 13.d5! +-)
    4.Qh6! f5 5.Rh3 f4 6.Qxf4 Kh8 7.e5 Qg7 8.Rg3 Rf8 9.Qc1!+-]

   [2...Qd6 3.Qxh5 Qf4 4.e5 Qh6
      (4...Be4 5.Rh3 Bxd3 6.Rdxd3 Qc1+ 7.Rd1 Qh6 8.Rg3! Qxh5 9.Rxg7+ Kh8
       10.Rxf7+ Kg8 11.Rg7+ Kh8 12.Rg5+ Kh7 13.Rxh5+ Kg6 14.g4 +-)
    5.Qxh6 Bxh6 6.Rh3 Rfc8 7.dxc5! Kf8 8.Rg3 bxc5 9.Bh7 Ke8 10.Rg8+ Bf8
    11.Bc2 Bc6
       (11...Bd5 12.Ba4+ Bc6 13.Bxc6+ Nxc6 14.h5 Ne7 15.Rh8 Nd5
          (15...Rab8 16.Bg7 +-)
        16.h6 Kd7 17.c4+-)
    12.h5 +-]

3.Bxg7

   [3.Rh3 Bxf6 4.Qxf6 Kh7 5.Rg3 Rg8 6.Qxe5 and Black survives?]

3...Kxg7 4.Qxh5 Rg8

   [4...f6 5.dxe5 Qe8 6.exf6+ Rxf6 and Black survives?]

   [4...Qd6 5.Rh3 and Black survives?]

5.Qxe5+ f6 6.Qg3+ and Black survives?




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