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Subject: Re: Position from local chess club

Author: Dann Corbit

Date: 09:52:47 11/05/99

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On November 05, 1999 at 12:20:31, Dan Homan wrote:

>
>This analysis probably is incorrect.  Try shutting off null-move.  Have
>a look at Remi Coulomb's message and my response.
I'd be interested to know if it really is harmful in this case.  By that I mean
the null move off choice is clearly better.  But this move is also a clear
advantage.  My real question is "Does null move pruning actually case the
program to lose, or only to win more slowly in this case?"

[snip]
>>               20-> 364:02   1.63   1. Ne5+ Kb6 2. Nbd3 a5 3. bxa5+ Kxa5
>>                                    4. Kg4 Qf8 5. Bd1 Qf6 6. Bf3 Ka4 7.
>>                                    Bd5 Qd6 8. Bg8 Qd8 9. Bf7 Qf6 10. Nc5+
>>                                    Kb4 11. Bd5 Qd6 12. Ned3+ Kb5 13. Be6

> 11.   5.48   131 19784897   1. b5+ Qxb5 2. Nd3 Qb8 3. Nc5+ Kb5 4. Ne5+ Kc5
>                             5. Nd7+ Kd6 6. Nxb8





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