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Subject: Re: Huge Bug in Fritz 9 (Engine)

Author: Rick Hagen

Date: 13:55:05 10/18/05

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On October 18, 2005 at 16:52:09, chandler yergin wrote:

>On October 18, 2005 at 16:34:53, Rick Hagen wrote:
>
>>On October 18, 2005 at 16:29:07, chandler yergin wrote:
>>
>>>On October 18, 2005 at 16:24:25, Rick Hagen wrote:
>>>
>>>>On October 18, 2005 at 16:15:01, chandler yergin wrote:
>>>>
>>>>>  Of course no good probram or bad program would choose that move.
>>>>>Ne5 is 4th choice. Only if that was the PV the engine was lookng at when the
>>>>>time allocation software made it move.
>>>>
>>>>The problem is that in MultiPV it_will_change its first move to Kg8 after a
>>>>while... but its eval is almost the same to Ne5! (-0.4x something)
>>>
>>>No it's not.. let the engine run for a few seconds.
>>
>>I let it run for 20 seconds.
>>Should be time enough to find it gives a piece away no?
>>Maybe I should run it for 1 hour?
>>
>>But I will run it in MultiPV mode untill it sees a clear difference, and I will
>>post the time okay?
>>
>>Rick
>
>Please do it Analysis mode; that way you can 'clip & paste' the Analysis.
>It you do it in Engine mode you can only 'cut & paste' the analysis.
>You'll see the difference.
>Also when Copying the position into the Message do a [D] in front of the Fen.
>Thanks very much I appreciate your offer.
>Chan

[D]1n1r3k/1p1n4/2p5/8/3B4/8/4K3/R7 b - - 0 1

New game, Blitz:5' Netherlands
1n1r3k/1p1n4/2p5/8/3B4/8/4K3/R7 b - - 0 1

Analysis by Fritz 9:

1. ³ (-0.48): 1...Ne5 2.Bxe5+ Kh7 3.Ra7 Nd7 4.Rxb7 Kg6 5.Bd4 Nf6 6.Bxf6 Kxf6
2. ³ (-0.48): 1...Kg8 2.Rg1+ Kf7 3.Rf1+ Ke6 4.Rb1 b5 5.Ba1 Ne5 6.Rb3 Nd3 7.Rc3
c5 8.Ke3 c4
3. ³ (-0.46): 1...Kh7 2.Bc3 b5 3.Rb1 Kg6 4.Kd2 Nf6+ 5.Kc2 Nd5 6.Rg1+ Kf5 7.Be1
Ne3+ 8.Kb3 Rd3+ 9.Kb2

(Hagen, Netherlands 18.10.2005)

(analysis mode)

Sorry Chandler, I love Fritz 9, but this is a bug :(

Rick



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