Author: Christophe Theron
Date: 01:07:26 06/01/01
Go up one level in this thread
On June 01, 2001 at 01:11:10, Michael Conway wrote:
>On May 31, 2001 at 23:16:25, Christophe Theron wrote:
>
>>On May 31, 2001 at 20:16:42, Michael Conway wrote:
>>
>>>On May 31, 2001 at 14:28:37, Christophe Theron wrote:
>>>
>>>>On May 31, 2001 at 05:00:59, Michael Conway wrote:
>>>>
>>>>>In this game, Chess Tiger blundered away a knight in the opening with the
>>>>>terrible 7...h6?? and then came back to crush ChessGenius using a powerful pawn
>>>>>push.
>>>>>
>>>>>I think this game shows the importance of the opening book, especially in a
>>>>>weaker chess engine (7...Qe7 is the book continuation). The game also showed
>>>>>ChessGenius' weakness in evaluating advanced and passed pawns.
>>>>>
>>>>>Interestingly, Genius likes 7...Qe7 after around three seconds of evaluation
>>>>>while Tiger after six minutes in analysis mode preferred 7...Be7 (after giving
>>>>>7...Qh4 a long look). Tiger never gave 7...Qe7 serious consideration.
>>>>>
>>>>>Christophe, I noticed in analysis mode that if Tiger had given itself several
>>>>>seconds to look at 7...h6, it wouldn't have played it. Can anything be done to
>>>>>the program to reduce the likelihood of such blunders?
>>>>>
>>>>>Thanks.
>>>>>
>>>>>
>>>>>TRGpro overclocked to 28 MHz. No PB.
>>>>>
>>>>>[Event "10-min Game"]
>>>>>[Site "Brooklyn"]
>>>>>[Date "2001.05.31"]
>>>>>[Round "1"]
>>>>>[White "ChessGenius"]
>>>>>[Black "Chess Tiger"]
>>>>>[Result "0-1"]
>>>>>
>>>>>1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nxd7 Bxd7 7. Qe2 h6
>>>>>8. f3 Bc6 9. fxe4 dxe4 10. c3 Qe7 11. Bc4 g6 12. O-O f5 13. g4 Qg7
>>>>>14. Bf4 Bd6 15. Bxd6 cxd6 16. Nd2 d5 17. Bb5 O-O 18. gxf5 gxf5+ 19. Kh1 Kh7
>>>>>20. Rg1 Qf7 21. Raf1 f4 22. Bxc6 bxc6 23. Qg4 h5 24. Qg5 f3 25. Qg3 Rab8
>>>>>26. b3 Rbe8 27. c4 Rg8 28. Qd6 Rxg1+ 29. Rxg1 f2 30. Rf1 e3 31. Qxc6 e2
>>>>>32. Qxd5 Qxd5+ 33. cxd5 e1=Q 34. Kg2 Qxd2 35. h4 Rg8+ 36. Kf3 Qd3+
>>>>>37. Kxf2 Rf8+ 38. Kg2 Qxf1+ 39. Kg3 Rf3+ 40. Kh2 Rh3# 0-1
>>>>
>>>>
>>>>
>>>>Thanks for pointing this out, Michael.
>>>>
>>>>I'll fix it today.
>>>>
>>>>
>>>>
>>>> Christophe
>>>
>>>Just out of curiosity, Christophe, when you say you'll fix it, do you mean
>>>you'll add 7...Qe7 to the opening book or will you do something additional to
>>>the engine itself?
>>
>>
>>I have been working on the engine since the release of the free version. The new
>>engine is better, but it would still blunder in this game. Actually it just
>>needs a few seconds more to avoid h6??, but at the time control you have used it
>>plays before realizing that the move is bad.
>>
>>So the fix is to add Qe7 in the opening book.
>>
>>And actually... guess what I have noticed today when I tried to add this move in
>>the book?
>>
>>Well... I had ALREADY fixed this in the book, on May 2nd. But I did not
>>recompile the book, so the book which has been released with the free version
>>does not have this update (as you noticed).
>>
>>Now I have recompiled the book (after fixing a number of other lines as well).
>>
>>
>>
>>>Also, when you fix it, will you make the modified version of the program
>>>available to us?
>>
>>
>>I'm going to email you the new book right now.
>>
>>If another Chess Tiger for Palm user wants this update, please send me a request
>>at
>>
>> support@chesstiger.com
>>
>>
>>
>> Christophe
>
>Thanks.
>
>Eagerly awaiting the graphical version.
>
>Michael
Me too!!! :) :)
Oops... I should keep on working on it instead of vasting my time on CCC... :)
Christophe
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