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Subject: Re: Average Engine but a fascinating game !

Author: Uri Blass

Date: 07:40:28 07/08/03

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On July 08, 2003 at 10:28:55, Djordje Vidanovic wrote:

>On July 07, 2003 at 16:47:09, Uri Blass wrote:
>
>>On July 07, 2003 at 16:44:28, Djordje Vidanovic wrote:
>>
>>>Here's the clip from the newest Ruffian engine:
>>>
>>>New game
>>>4rqn1/p3brk1/R5p1/6Bp/1p5Q/1B1R4/PPP2PPP/6K1 w - - 0 1
>>>
>>>Analysis by Ruffian 2003-06-23:
>>>
>>>1.Rxg6+ Kxg6 2.Rh3 Bxg5 3.Qxh5+ Kf5 4.Rf3+ Ke5 5.Rxf7 Qh6 6.Qe2+ Be3 7.fxe3
>>>  +-  (7.53)   Depth: 1/7   00:00:00
>>>1.Rxg6+ Kxg6 2.Rh3 Bxg5 3.Qxh5+ Kf5 4.Rf3+ Ke5 5.Rxf7 Qh6 6.Qe2+ Be3 7.fxe3
>>>  +-  (7.53)   Depth: 1/7   00:00:00
>>>1.Rxg6+ Kxg6 2.Rh3 Bxg5 3.Qxh5+ Kf5 4.Rf3+ Ke5 5.Rxf7 Qh6 6.Qe2+ Be3 7.fxe3
>>>  +-  (7.53)   Depth: 2/7   00:00:00
>>>1.Rxg6+ Kxg6 2.Rh3 Bxg5 3.Qxh5+ Kf5 4.Rf3+ Ke5 5.Rxf7 Qh6 6.Qe2+ Be3 7.fxe3
>>>  +-  (7.53)   Depth: 3/10   00:00:00
>>>1.Rxg6+ Kxg6 2.Rh3 Bxg5 3.Qxh5+ Kf5 4.Rf3+ Ke5 5.Rxf7 Qh6 6.Qe2+ Be3 7.fxe3
>>>  +-  (7.53)   Depth: 4/10   00:00:00
>>>1.Rxg6+ Kxg6 2.Rh3 Bxg5 3.Qxh5+ Kf5 4.Rf3+ Ke5 5.Rxf7 Qh6 6.Qe2+ Be3 7.fxe3
>>>  +-  (7.53)   Depth: 5/11   00:00:00
>>>1.Rxg6+ Kxg6 2.Rh3 Bxg5 3.Qxh5+ Kf5 4.Rf3+ Ke5 5.Rxf7 Qh6 6.Qe2+ Be3 7.fxe3
>>>  +-  (7.53)   Depth: 6/13   00:00:00  16kN
>>>1.Rxg6+ Kxg6 2.Rh3 Bxg5 3.Qxh5+ Kf5 4.Rf3+ Ke5 5.Rxf7 Qh6 6.Qe2+ Be3 7.fxe3
>>>  +-  (7.53)   Depth: 7/17   00:00:00  86kN
>>>1.Rxg6+ Kxg6 2.Rh3 Bxg5 3.Qxh5+ Kf5 4.Rf3+ Ke5 5.Rxf7 Qh6 6.Qe2+ Be3 7.fxe3
>>>  +-  (7.53)   Depth: 8/20   00:00:00  202kN
>>>1.Rxg6+ Kxg6 2.Rh3 Bxg5 3.Qxh5+ Kf5 4.Rf3+ Ke5 5.Rxf7 Qh6 6.Qe2+ Be3 7.fxe3
>>>  +-  (7.53)   Depth: 9/20   00:00:00  448kN
>>
>>I suspect that it learned from previous analysis.
>>The line and the score was not changed from depth 1.
>>
>>Uri
>
>
>Which previous analysis?  I just copied the fen into Ruffian and let him
>analyse. No previous analysis. Wrong suspicion :)  Ruffian is a very smart
>program...
>
>Djordje

It does not make sense that a program has a pv of 13 plies at depth 1 when the
pv and the score are unchanged until depth 9 except number of nodes.

Maybe Ruffian analyzed the position without telling you about it after you
copied the FEN and before you started the analysis.

Uri

• Re: Average Engine but a fascinating game ! Alessandro Damiani 14:33:27 07/08/03
  • Re: Average Engine but a fascinating game ! Ralph Stoesser 15:29:40 07/08/03
  • Re: Average Engine but a fascinating game ! Uri Blass 15:10:38 07/08/03
• Re: Average Engine but a fascinating game ! Uri Blass 07:50:39 07/08/03
  • Re: Average Engine but a fascinating game ! Djordje Vidanovic 11:52:21 07/08/03
    • Re: Average Engine but a fascinating game ! Uri Blass 12:13:23 07/08/03

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