Author: Ed Trice
Date: 08:59:35 01/10/04
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Hello Reinhard and Michel,
Just so you know, the values on the website are just approximate values that I
offered. Gothic Vortex does something very complicated in the form of a
statistical "strategic" adjustment to the values as a function of a very
granular evaluation of the game stage.
Here is a martix you should compose and test your weights:
Knight + Rook vs. Chancellor
Knight + Bishop vs. Chancellor
Chancellor + Pawn vs. Queen
Archibishop + Pawn vs. Chancellor
Queen vs. Archibishop + Knight
Queen vs. Archbishop + Bishop
Chancellor + Bishop vs. Archbishop + Rook
Rook vs. Knight + Knight
Rook + Pawn vs. Archbishop
I have many more of these in the evaluation function that STATISTICALLY
estimates which group should be preferred at many different game stages.
IF, and that is a BIG IF, the weights are tuned well, Vortex has 'strategic
vision' equivalent to extending its search horizon.
If the weights are off, I would expect catastrophic results, such as wildly
fluctuating scores, or many researches, etc.
>On January 10, 2004 at 06:17:35, Michel Langeveld wrote:
>
>>This is the current piece value array of TSCP:
>>
>>/* the values of the pieces */
>>int piece_value[BOARD_MAX_PIECE_TYPES] = {
>> 100, //pawn
>> 250, //knight
>> 300, //bishop
>> 475, //rook
>> 650, //archbishop
>> 825, //chancellor
>> 875, //queen
>> 000 //king
>>};
>
>Well, I think Ed Trice also like to make some runs with those values.
>
>>What do I have to file in for your values?
>
>Pawn = 100
>Knight = 306
>Bishop = 360
>Rook = 543
>Archbishop = 665
>Chancellor = 849
>Queen = 903
>-----------------
>King = 372 (usage depending on your program)
>
>>Then I will play two games.
>>One with white against the old version and one with black against the old
>>version and tell you what versions what version won the most :-)
>
>Though I think two games would not be that representative I will thank you very
>much for such experiments, because I myself are still far from being able to
>test this.
>
>Regards, Reinhard.
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