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Subject: Re: Att. Uri Blass Re.: chess engines for CC

Author: Alex Shalamanov

Date: 05:36:57 09/13/05

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On September 13, 2005 at 07:27:18, J.Dufek wrote:

>On September 13, 2005 at 04:27:13, Alex Shalamanov wrote:
>
>>On September 13, 2005 at 01:52:05, J.Dufek wrote:
>>
>>
>>>Bad impression. Lot of my analysis i made with Fritz, because my opponents play
>>>with him. But results are very very bad. It's only about own experience - you
>>>have maybe very good results with Fritz, because he understand yours positions,
>>>but for my work (pls look at iccf.com for my rating) is uselles. 3 months ago i
>>>analyzed one my corr. position - he offer for opponent 3 or 4 moves (totaly
>>>different) with evalution 0,00. This is not only one position...
>>
>>If you mean Fritz 8X3D, I would agree that it's not strong enough because it was
>>the earliest version, but I prefer analyzing with Fritz 1.2.0 (Bilbao) or Deep
>>Fritz 8. They are more sophisticated than the predecessor. Of course, the style
>>I use (developing complicated acute positions) may count too, but on the whole
>>I'm quite happy with DF8. As a proof I can present a position arisen in ICCF
>>WS/M/003. What we'are having now, is a complicated endgame.
>>The game is still going on but I'm sure it's dead won, so I'm giving it now.
>>[D] 7k/3r4/2rN1p1p/2P4P/1P1p4/P2bpKR1/6P1/2R5 w - - 0 56
>>
>>I've analyzed this endgame with different engines (Shredder 9 UCI, Fruit 2.1,
>>Hiarcs 9, Fritz 8 Bilbao, Deep Fritz 8) but it's only DF8 that produced the
>>correct easy winning move sequence: 56.Rg4 Rdxd6 (56...Rcxd6 changes nothing
>>much) 57.cxd6 Rxd6 58.Rc8+ Kh7 59.Rc7+ Kh8 60.Rgg7! +-
>>I don't know, if the hardware counts here (Celeron 333/128MB RAM) and with the
>>better hardware other chess engines would also find the sequence, but with what
>>I have this engine seems to work best of all. The other engines proposed 60.a4?!
>>as the best move.
>>
>>Kind regards,
>>Alex
>
>maybe i am wrong, but:
>- it's no good provide this on only one positions (it's no problem present
>another position with reverse result, and i have it)
>- with only quick test, i setup this positions with Gandalf6 + ChessTiger 2004,
>he immediately found 1.Rg4 as best move, Shredder 9 CB found this too, but after
>56sec preffered 1.Rd1 and then with time 2:00 found back 1.Vg4 (no problem,
>+3.40 score
>- corr. games are not about finding one move in position, because you need found
> less or more long variation... i don't know previous moves in your game, but
>you must have this position maybe 10 moves earlier on chessboard....
I didn't have this position analyzed because I didn't suppose my opponent to
choose such a weak line. I've just scanned it through without scrutinizing much.
When he chose this one I had to analyze it in more detail.
And you've missed my point. With my rather outdated hardware only DF8 gives the
exact evaluation and the move sequence in a giffy, the others need more time. It
means it's good not only in sharp positions. As I take it, it's not a matter of
speedsearch but rather of the embedded chess knowledge. Since Fritz9 is said to
have even more chess knowledge, I will purchase it most evidently.



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