Chess Tiger 2007.1 has just been released
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Re: Chess Tiger 2007.1 has just been released
Could be Shaun,could be
_No one can hit as hard as life.But it ain’t about how hard you can hit.It’s about how hard you can get hit and keep moving forward.How much you can take and keep moving forward….
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Re: Chess Tiger 2007.1 has just been released
On a slight side note - I would like to see more parameters exposed for experimentation. The settings that are optimal for blitz may or may not be optimal for longer time controls.
On the subject of identical opponents - this is one of the feature of our website I love, the ability to be able to compare - side - by side with all common opponents.
Shaun
On the subject of identical opponents - this is one of the feature of our website I love, the ability to be able to compare - side - by side with all common opponents.
Shaun
Re: Chess Tiger 2007.1 has just been released
intel 6300, blitz 25'+10"
program x = chesstiger2007.1
program y = chesstiger2007.1 (gambit style)
it seems default works better with this version (as other tournaments have shown with more significance.)
the playing strength increase especially happens IMO on fast machines with long time controls.[/quote]
Was there testing done with Gambit Aggressive style, and if yes, what where the results?
Best regards,
Kaj
program x = chesstiger2007.1
program y = chesstiger2007.1 (gambit style)
it seems default works better with this version (as other tournaments have shown with more significance.)
the playing strength increase especially happens IMO on fast machines with long time controls.[/quote]
Was there testing done with Gambit Aggressive style, and if yes, what where the results?
Best regards,
Kaj
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Re: Chess Tiger 2007.1 has just been released
Was there testing done with Gambit Aggressive style, and if yes, what where the results?Kaj Soderberg wrote:intel 6300, blitz 25'+10"
program x = chesstiger2007.1
program y = chesstiger2007.1 (gambit style)
it seems default works better with this version (as other tournaments have shown with more significance.)
the playing strength increase especially happens IMO on fast machines with long time controls.
Best regards,
Kaj
The style has not been tested and frankly I do not believe it would be stronger.
Starting with CT2007 (and including CT2007.1), Chess Tiger automatically switches to the "Gambit" mode when the positions it searches seem to favor a King attack.
This is done dynamically inside the search tree, it does not depend on the root position. So there are portions of the search tree that will be evaluated using the Gambit mode, a mode that emphasizes pressure on the opponent's King.
This explains that using the Gambit mode results in lower performance: if you use the Gambit mode by default, parts of the search tree are going to be evaluated with the Gambit aggressive mode, which gives too much weight to King attacks.
Using the Gambit agressive mode will result in part of the tree evaluated by the Gambit suicidal mode, which is... suicidal.
// Christophe
Re: Chess Tiger 2007.1 has just been released
Thank you for this very interesting information.
Best regards,
Kaj
Best regards,
Kaj
Re: Chess Tiger 2007.1 has just been released
Hi Cristophe,tiger wrote:
The style has not been tested and frankly I do not believe it would be stronger.
Starting with CT2007 (and including CT2007.1), Chess Tiger automatically switches to the "Gambit" mode when the positions it searches seem to favor a King attack.
This is done dynamically inside the search tree, it does not depend on the root position. So there are portions of the search tree that will be evaluated using the Gambit mode, a mode that emphasizes pressure on the opponent's King.
This explains that using the Gambit mode results in lower performance: if you use the Gambit mode by default, parts of the search tree are going to be evaluated with the Gambit aggressive mode, which gives too much weight to King attacks.
Using the Gambit agressive mode will result in part of the tree evaluated by the Gambit suicidal mode, which is... suicidal.
// Christophe
Have you seen this thread?
http://216.25.93.108/forum/viewtopic.ph ... ht=#109732
Could that be related to the style change in the search? As soon as the queen's are off CT2007 (CT2007.1 too) realizes that white position is bad at *very* low depth.
Thank you very much for the update,
Marc
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Re: Chess Tiger 2007.1 has just been released
Marc MP wrote:Hi Cristophe,tiger wrote:
The style has not been tested and frankly I do not believe it would be stronger.
Starting with CT2007 (and including CT2007.1), Chess Tiger automatically switches to the "Gambit" mode when the positions it searches seem to favor a King attack.
This is done dynamically inside the search tree, it does not depend on the root position. So there are portions of the search tree that will be evaluated using the Gambit mode, a mode that emphasizes pressure on the opponent's King.
This explains that using the Gambit mode results in lower performance: if you use the Gambit mode by default, parts of the search tree are going to be evaluated with the Gambit aggressive mode, which gives too much weight to King attacks.
Using the Gambit agressive mode will result in part of the tree evaluated by the Gambit suicidal mode, which is... suicidal.
// Christophe
Have you seen this thread?
http://216.25.93.108/forum/viewtopic.ph ... ht=#109732
Could that be related to the style change in the search? As soon as the queen's are off CT2007 (CT2007.1 too) realizes that white position is bad at *very* low depth.
Thank you very much for the update,
Marc
No it's not related to the auto-Gambit system.
// Christophe