Computer Chess Club Archives


Search

Terms

Messages

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

Author: Rick Hagen

Date: 23:14:18 10/18/05

Go up one level in this thread


On October 19, 2005 at 01:58:18, Uri Blass wrote:

>On October 19, 2005 at 01:52:54, chandler yergin wrote:
>
[...]

>>>>Analysis by Fritz 5.32:
>>>>
>>>>1. -+ (-4.69): 1...Kg8 2.Rh1 Re8+ 3.Kd3 Ne5+ 4.Bxe5 Rxe5 5.Ra1 Rd5+ 6.Kc2
>>>>2. -+ (-4.63): 1...Kh7 2.Rh1+ Kg6 3.Rh8 Nf8 4.Bb6 Re8+ 5.Kd3 Nbd7 6.Bc7
>>>>3. ยต (-0.97): 1...Ne5 2.Bxe5+ Kg8 3.Ra8 Re8 4.Kd3 Rxe5 5.Rxb8+ Kf7 6.Rxb7+
>>>>
>>>>(, MyTown 18.10.2005)
>>>
>>>This only proves that Fritz5.32 does not have the bug.
>>
>>All the Fritz engines work the same way.. Shredder included.
>
>They use similiar algorithm but evaluation is different.
>The bug seems to be bug in the evaluation of Fritz9 and not bug in the
>evaluation of other engines.
>
>>
>>>The bug is specific for Fritz9 engine that fails to evaluate Kg8 or Kh7 as -+
>>
>>You have a 'user' that has a complaint, out of how many millions that use
>>this product?
>>
>>>
>>>Uri
>>        The Fritz9 Engines per se.. do not have this bug. I explained how
>>and what this problem is. Also how to correct it.
>
>Can you show me analysis with Fritz9 that show more than +3 pawns for black in
>the relevant position or even more than +1 for black?

He doesn't have Fritz 9, so he can't I'm afraid.
And (his words, paraphrased), "it's not a Fritz 9 bug, it's a user error"...
We Fritz 9 users don't know how to analyse a position correctly!


>
>Of course you can do it with Fritz5.32 because Fritz5.32 does not have the bug

And Fritz 8 and Shredder 9 and Fruit x.x and...

>
>Uri

Rick



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.