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Arimaa Forum Chalenging game from positional point of view ?


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   Chalenging game from positional point of view ?
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   Author  Topic: Chalenging game from positional point of view ?  (Read 953 times)
pago
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Chalenging game from positional point of view ?
« on: Oct 10th, 2010, 2:05am »
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HERD material evaluator is stabilized and seems to provide correct results (even though I would have liked to see a comparision with other evaluators by rednaxela).
 
I am trying to develop a positional evaluator with the same kind of ideas : blocakde, piece misplacements etc... would not be hardcoded but would be emerging properties.
 
I am searching for interesting games from positional point of view that would be chalenging for evaluators.
 
Obvious games could be games between Friztlein and Chessandgo but I assume that there are also other interesting games (in particular in postal games).
 
For the moment I look at World Championship 2010 and the chalenge 2010.
 
The game #136807 between Adanac and Chessandgo (R9 of WC 2010) seems to be a good candidate :  
silver won although gold had a material advantage from 12w to 23w (H for D). There was neither obvious burdens nor obvious positional factors such as E blockade.
 
Do you have other ideas of games that could be a reference to test positional evaluators.
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clojure
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Re: Chalenging game from positional point of view
« Reply #1 on: Oct 10th, 2010, 5:47am »
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Hi, I have no specific games in mind but good candidates might have occurred when the strategic understanding of Arimaa hadn't been developed as much as now. If you would look high level games of those days, you would see strategic play that would be considered immature now but the games would still have lots of thought put on to them.
 
For example, I think chessandgo liked to advance his rabbits early on in his early Arimaa career (I remember this from his video commentary). Also how important people considered camel hostage, and tempo might have changed considerably. So there could be imbalanced positions regarding different aspects of evaluation.
 
Good luck with the evaluators!
« Last Edit: Oct 10th, 2010, 5:49am by clojure » IP Logged
pago
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Re: Chalenging game from positional point of view
« Reply #2 on: Oct 11th, 2010, 5:09am »
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Quote:
Hi, I have no specific games in mind but good candidates might have occurred when the strategic understanding of Arimaa hadn't been developed as much as now. If you would look high level games of those days, you would see strategic play that would be considered immature now but the games would still have lots of thought put on to them.

 
Thank you for your suggestion. Look at old games may be a valuable idea.
 
Quote:
So there could be imbalanced positions regarding different aspects of evaluation.

 
I wonder whether the difficulty for evaluators are with unbalanced positions. On the contrary I feel without beeing sure that there would be more difficulties with (almost) balanced position
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pago
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Re: Chalenging game from positional point of view
« Reply #3 on: Oct 13th, 2010, 6:53am »
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I have found the following link to a wikipage in an old thread of the forum :
 
http://arimaa.com/arimaa/twiki/bin/view/Arimaa/BotSlayer
 
I think that it should answer to my answer (...at least partially).
 
I quickly looked at some games yesterday and they are amazing.
 
I like particularly the game 12121 between Belbo a a too passive bot.
 
Thank you to the autor of this page.
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