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Subject: Re: How strong is Deep Sjeng?

Author: George Sobala

Date: 13:24:38 03/31/03

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On March 31, 2003 at 15:38:51, Robert Hyatt wrote:

>On March 30, 2003 at 05:05:34, George Sobala wrote:
>
>>On March 29, 2003 at 16:52:21, Jan Kiwitter wrote:
>>
>>>On March 29, 2003 at 15:17:01, Jason Waugh wrote:
>>>
>>>>It's style is highly customizable - it comes with a bunch of different
>>>>personalities pre-configured, along with a personality editor to make your own.
>>>>RE: strength.... I wouldn't buy it for it's strength compared to engine 'X' -
>>>>but it makes an excellent complement to Chess Tiger 15 because it is so much fun
>>>>to play --- DS for playing, CT15 for analysis.
>>>>
>>>>
>>>>Jason.
>>>
>>>Thanks for you opinion! Why is it fun to play with? Does it play very active?
>>>Regards
>>>Jan
>>
>>You can make it play VERY active! See redshift running on ICC for an example -
>>playing to a rating of about 2450 on a K6-450, very happy to make sacs in the
>>opening and middle game. Other engines slaughter it because they defend
>>precisely, but against humans it is different: e.g. against one IM (Chito Garma,
>>FIDE 2415) who has played it at 3 0 blitz on this setting it has scored +61 =3
>>-46. The very fact that he has played it 110 times suggests that there must be a
>>fun element!
>
>
>yes, but that -46 suggests that the settings while "fun" are very "bad".


Oh, absolutely, I agree! It often makes outrageously bad moves - but they are
aggressive bad moves. But I find it interesting that it has a rating against
humans so much higher than its rating against comps: it is winning against human
opponents (up to a certain level) by playing bad attacking chess rather than by
any humble aspirations to "chess purity". It perhaps suggests that the top chess
engines on fast machines could perform even better against humans if they were
tuned to "mix it up" rather more, even at the cost of worse results against
other chess engines. (Shades of Junior's Bxh2.)



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