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Subject: Re: Another difficult position

Author: Martin Andersen

Date: 17:25:09 12/19/03

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On December 19, 2003 at 17:36:15, Steffen Basting wrote:

>Hi!
>
>How long does your engine need to find Rxh6!
>
>[D] r3rbk1/1bq2pp1/p1np1n1p/1p3P2/4P3/P1N1BBN1/1PPQ4/2KR3R w - - 0 1
>
>Fritz 8 needs some minutes on a PIV 3.06 and then fails high for a really long
>time - perhaps other programs do better?
>
>Regards, Steffen

Crafty 19.7 Linux Athlon 2400+ can't find Rxh6, but claims Nh5 is good..

Depth:       14      Nodes: 2946534K (589 kn/s)
Score:    +1.20      Time:   5000.57 seconds
1. Nh5 Nxh5 2. Bxh5 b4 3. Nd5 Qd8 4. Qg2 bxa3 5. bxa3 Ne5 6. Bxh6 Bxd5 7. Rxd5
Nc4 8. Rg1 Nxa3 9. Bxg7 Bxg7 10. Qxg7#

Moving Nh5 Nxh5 Bxh5 and analysing this position:
[D] r3rbk1/1bq2pp1/p1np3p/1p3P1B/4P3/P1N1B3/1PPQ4/2KR3R b - - 0 2

Black seems doomed.

Depth:       13      Nodes: 1066930K (586 kn/s)
Score:    +2.63      Time:   1820.07 seconds
2. ... b4 3. Nd5 Qd8 4. Rdg1 bxa3 5. bxa3 Ne5 6. Bb6 Bxd5 7. Bxd8 Bxe4 8. Rh4 d5
9. Qxh6 Raxd8

Martin.



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