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Subject: Re: Century 3.0 Still cannot See the Win in Annand Rebel 1998

Author: Harald Faber

Date: 10:42:20 10/31/00

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On October 31, 2000 at 12:35:38, Bruce Moreland wrote:

>On October 31, 2000 at 03:25:16, Harald Faber wrote:
>
>>On October 31, 2000 at 02:32:03, Garry Evans wrote:
>>
>>>On October 31, 2000 at 01:26:18, Harald Faber wrote:
>>>
>>>>On October 31, 2000 at 00:57:31, Garry Evans wrote:
>>>>
>>>>>
>>>>> Rebel Century is an excellent Program and an obvious improvement over it's
>>>>>predeccesor. I am a little surprised however that it does not find the winning
>>>>>line in Annand Rebel 1998. Here is the Position
>>>>>
>>>>>
>>>>>  r4k1/p4ppp/3P3q/4P2P/3b1P2/1r6/pPQ3B1/K1B2R2 b - - id Anand,V - Rebel10 (exp);
>>>>>bm d4b2;
>>>>>
>>>>>After 3 mins on my K62-500 Rebel still refuses to find Qe6!!
>>>>
>>>>Ooops, not within 3min? This is a shock for me. :-)))
>>>>Did you try
>>>>a) Gambit Tiger 1.0 and Chess Tiger 13?
>>>>b) other programs?
>>>
>>>No my Rebel 11 CD has not arrived yet, I know fritz6 Solves the position almost
>>>instantly
>>
>>
>>There are always positions Fritz solves faster than Rebel as there are also
>>positions Rebel plays better than Fritz.
>>Century 3.0 needs 14min58sec on my K6-200 to go for Qe6. That means about 6min
>>on an Athlon500. Current standard PC is about >800MHz, which may lead to less
>>than 4min. Fast enough I think and further hardware development will do the
>>rest.
>>No need to worry IMO.
>
>What is "solving" in these cases?  Finding the correct move at 0.02 pawns better
>than the incorrect move?
>
>bruce

Usually solving means finding a forced move (order) to get a draw or drawn
position from a worse one or get a won position from a worse or drawn one.
One can discuss if the solution must be the ONLY move to reach that aim.




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