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Subject: Re: NIMZO 99 -- Opinions please

Author: James T. Walker

Date: 06:22:15 12/30/98

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On December 30, 1998 at 00:26:44, Dan Kiski wrote:

>On December 29, 1998 at 22:14:12, James T. Walker wrote:
>
>>On December 29, 1998 at 15:51:39, Kenneth K. Quarshie wrote:
>>
>>>     Should I add Nimzo 99 to my chess software collection (CB7, F532, H6 & J5)?
>>>The playing style of the program compared to the software that you own.  Does
>>>the patch improve the program, or only against other programs?
>>
>>I personally don't think Nimzo99 is worth the CD it's printed on.  But if money
>>is not a problem get it anyway.  Every program I have has bugs in it and has
>>strange quirks in it's play.  For instance, don't depend on Junior5 for analysis
>>if underpromotion is possible.  It will definitely lead you astray.  It also
>>can't perform a Knight & Bishop mate.  Nimzo99 seems to lose a lot of games to
>>Junior5 and part of the problem is the "Hash Learning" feature is subject to
>>losing it's memory if the program is terminated under unusual circumstances.
>>Neither program comes with a database but you already have that.  The bottom
>>line is, the more programs you have the more confused you can make yourself :-)
>>.....
>>
>>Jim Walker
>>
>>P.S. I was once told a man who has a watch knows what time it is.  A man with
>>two watches is not sure !
>
>CM to my knowledge also cannot perform the bishop, knight mate, and as we have
>all said prior to today depends what you want the program to do.

>>>>>>>>>>
Can you show me a starting position which CM6k can not mate using a K&B.  It
does not appear to be "Perfect" at doing this but I submit the following moves
which show it can drive you out of the "Wrong" corner and indeed mate. Junior
can not do this.  This was started with Game/10 minutes setting.

[Event "N&B Mate"]
[Site ""]
[Date "1998.12.30"]
[Round "?"]
[White "Chessmaster"]
[Black "Patzer"]
[Result "1-0"]
[FEN "7k/8/6B1/5KN1/8/8/8/8  w - - 0 1"]
[PlyCount "69"]

1. Kf6 Kg8
2. Nf7 Kf8
3. Bh7 Ke8
4. Bf5 Kf8
5. Bd7 Kg8
6. Ne5 Kh8
7. Ng6+ Kg8
8. Bf5 Kh7
9. Be6 Kh6
10. Nf8 Kh5
11. Bf5 Kh6
12. Nd7 Kh5
13. Ne5 Kh6
14. Nf7+ Kh5
15. Ke5 Kh4
16. Kf4 Kh5
17. Kf3 Kh4
18. Bg6 Kh3
19. Be4 Kh4
20. Bf5 Kh5
21. Kf4 Kh4
22. Be4 Kh5
23. Bc2 Kh4
24. Bg6 Kh3
25. Be4 Kh4
26. Bf3 Kh3
27. Nd6 Kh4
28. Nf5+ Kh3
29. Ke3 Kh2
30. Kf2 Kh3
31. Be2 Kh2
32. Bg4 Kh1
33. Ng3+ Kh2
34. Nf1+ Kh1
35. Bf3#  1-0

Jim Walker





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