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Subject: Re: Help with this interesting position?

Author: Jeremiah Penery

Date: 22:43:43 11/05/98

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On November 06, 1998 at 00:26:37, James Robertson wrote:

>The following position was reachied in a blitz game between Exchess 2.49 and
>SSEChess 2.01:
>
>4rrk1/ppp2pp1/2qp3p/2n5/2P1PQ1B/3P4/P1P3PP/R4RK1 w - -
>
>Exchess played Qf2 and won about 30 moves later, but I thought that maybe Bf6
>would be an irresistible sacrifice for a computer program.
>
>After 1. Bf6 gxf6 2. Qxh6, I don't see any way Black can win:
>
>2. ... Nd5 3. Rf3 Ng5 4. Rg3 d5 5. h4 Qd6 6. Kh2 Qe5 7. hxg6 fxg6 8. Qxg6+ Qxg6
>9. Rxg6+ Kh7 10. cxd5 (evaluated -2.15 for Black by Crafty)
>
>2. ... Nd7 3. Rf3 (And Black can't stop Rg3)

I ran Crafty on it.  Here's what I got after 1.Bf6 gxf6 2.Qxh6:

2. ... Ne6 3. Rab1 Qc5+ 4. Rf2 Nd4 5. Rxb7 Rb8 6. Rxb8 Rxb8 7. g4 Qg5 8. Qh3
Rb1+ 9. Kg2 Rb2 (Eval: -1.6 for white)

Better for white seems:
 1. Bf2 b6 2. Be3 Qd7 3. Rf2 Re7 4. Raf1 Qe6 5. Bd4 Nd7 6. c3 Ne5 7. Rd2
(Eval near 0)

Also 1. Bf2 b6 2. Qd2 Qd7 3. Be3 Qg4 4. Rab1 Re7 5. Qd1 Qh4 6. Qf3 Rfe8 looks
about the same.

Jeremiah



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