Author: John Merlino
Date: 09:07:20 05/07/03
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On May 07, 2003 at 11:37:29, Brian Thomas wrote: >Hey John, > >Out of curiosity do you know the min/max values of the King parameters? Out of >curiosity I tried to get the default/min/max of each of the king's parameters >from within the CM9k GUI. The defaults are pretty well known, the negatives are >pretty well known, but I'm looking for the upward limit. > >Interestingly, when I set the queen (either Own or Opposing) values to max, the >GUI sends a value of 99 to the engine. What's weird is that the default is 100, >and one would assume it could go higher. > >Ideas? > >Thanks, >Brian According to my documents, here are the min and max values for the GUI: All pieces are between 0 and 15 Attacker/Defender: -100 to 100 Strength of Play: 0 to 100 Randomness of Play: 0 to 100 Book Depth: 0 to 100 (although no book is deeper than 40 plies) Search Depth: 1 to 99 (although The King has a max search depth of 46 plies) Selective Search: 1 to 16 Contempt for Draw: -5 to 5 Transposition Table: 512K to 2GB Material/Positional: -100 to 100 Control of Center, Mobility, King Safety, Passed Pawns and Pawn Weakness are all 0 to 200 However, many of these values are translated from what the user sees into the appropriate values for The King. I'm pretty sure that the material value that is sent to the engine is in the form of a PERCENTAGE of the typical value. This is why the default is 100 for pieces. So, a value of 15 for queens (the max) should result in something like 166 to The King. BUT, the Material/Positional value will further modify the values for the pieces. The more that this value is set towards Material, the higher the piece values will be, and vice versa. I hope that made sense (and that it was correct).... jm
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