Author: James B. Shearer
Date: 15:43:12 08/07/98
Go up one level in this thread
On August 07, 1998 at 05:18:01, Robert Hyatt wrote (in part):
>I limit Crafty's choice of opponents to those that will actually have a chance
>of beating it, so that I can learn something about what it is doing wrong.
>There are *far* more 1500 players than 2400 players, and they would certainly
>keep it more busy. But it will roll them up into little balls quite easily,
>which doesn't lead me to finding problems...
Suppose we assume that you only learn from Crafty's losses. You are
no doubt correct that allowing 1300-1500 rated players to play Crafty would
not produce more Crafty losses since the small chance such players will win
will be outweighed by the chance they will displace a higher rated opponent.
However the case of 2200-2400 rated players is less clear. Such players
should have a 1-10% chance of beating Crafty. This is not terrific but if
even the best humans win less than 25% of the time it is not too bad. You
might get more losses allowing such players to play crafty particularly if
you could figure out some way to give priority to higher rated players.
Btw you said no grandmaster scores even 25% against crafty. This
suggests some do considerably worse. I realize you don't want to name names
but could you give some more details about how crafty has been scoring
against humans in blitz games.
James B. Shearer
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