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Subject: Re: Not using tablebases helped Junior5 to win a game in mclane's tourna

Author: Paulo Soares

Date: 17:34:41 03/28/99

Go up one level in this thread


On March 28, 1999 at 19:01:19, James T. Walker wrote:

>On March 28, 1999 at 13:54:58, blass uri wrote:
>
>>
>>On March 28, 1999 at 13:46:49, José de Jesús García Ruvalcaba wrote:
>>
>>>On March 28, 1999 at 13:30:30, blass uri wrote:
>>>
>>>>
>>>>On March 28, 1999 at 13:19:16, José de Jesús García Ruvalcaba wrote:
>>>>
>>>>>On March 28, 1999 at 05:46:46, blass uri wrote:
>>>>>
>>>>>>I looked in gambitsofrt forum
>>>>>>and I found that Junior5 won Wchess2000 in mclane's tournament
>>>>>>
>>>>>>Junior got a drawn KQP vs KQ
>>>>>>
>>>>>>8/8/6Q1/3p4/1K1k4/8/8/7q b - - 0 1
>>>>>>
>>>>>>Junior5 did not use tablebases and played Qe1+
>>>>>>
>>>>>>Junior5 won after a mistake of wchess2000 (Kb5)
>>>>>>
>>>>>>Tablebases tell Junior5 to play Ke3? Qg5+ Ke2 and black is losing the pawn after
>>>>>>Kc5.
>>>>>>
>>>>>>Uri
>>>>>
>>>>>	That is what I call poor tablebase handling. Tablebases should never decrase
>>>>>playing strength when they are probed at the root. Is this a problem of Junior?
>>>>>or has something to do with the tablebases?
>>>>
>>>>No, it is a problem of Fritz5
>>>>Junior is using tablebases of Fritz5 in the ssdf games and it is not fair.
>>>>
>>>>The original Junior5 does not use tablebases.
>>>>
>>>>Uri
>>>
>>>	I do not understand the strange relationship between Junior5 and Fritz5. Could
>>>you please elaborate? Why does Junior use Fritz's tablebases? Is it being
>>>handicapped by Fritz's poor tablebase handling?
>>
>>I asked the ssdf guys about this and I told them that I think that it should not
>>use the tablebases and Amir Ban replied that it is impossible to use the
>>autoplayer for Junior5 without the tablebases of Fritz5(In the Fritz5 CD).
>>
>>chessbase is quilty about this strange relationship.
>>
>>I believe that Junior5 is handicapped by Fritz's poor tablebase handling but I
>>am not sure about it because the tablebases can sometimes be productive .
>>
>>Uri
>
>Hello Uri,
>It's a simple matter of clicking the "Use endgame CD" box under the "Load
>engine" menu which is under the "Levels" menu to turn the endgame CD off or on.
>The CD has to be in the tray to run auto232 but it does not have to be used for
>endgame play.  Also you can click the "Engine choice" box under "Engines" menu
>which is also under the "Levels" menu to turn off the endgame CD ROM.  Also I
>have seen Junior 5 win games because of the endgame CD ROM so I doubt if it
>makes much difference.  Also it is no more of Fritz's problem than it is Junior
>5 or Nimzo 99's problem.  It is the CD ROM's problem since all three have the
>problem while using the CD ROM.
>I still think Junior 5 and Nimzo 99 should not use the CD ROM because it is not
>a part of the package and the programs run fine without it.  As I said they need
>that CD to use the auto232 but that's all.
>Jim Walker


Jim,

I tested the position with Fritz5.32( Version March/99,
with tablebases), see below:

1... Ke3 2. Qb6+ d4 3. Qe6+ Kd2 4. Qf7 d3 5. Qg7
Kc1 6. Qe5?? (6. Qa1+ Wins.).

Tablebases yet have problems, and Fritz5.32 also
has some problems with problems with promotions.

Another problem, what Chessbase wants to say with
"engine now mates with bishop and knight"? I
don't understand.

Best regards,

Paulo Soares, from Brazil



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