Author: Filip Tvrzsky
Date: 20:05:25 06/21/02
Go up one level in this thread
Let me suppose my solution of your problems with hashed matescores (quite simple
and in fact identical with that of Mr. Hyatt): adjust the evaluation every time
just after you become it from the depth "depthroot + 1".
Something like:
int Evaluation = -Alfabeta(-Beta, -Alfa, Horisont_alfabeta - 1);
if (Evaluation < -MATVALUE + 100) Evaluation++;
else if (Evaluation > MATVALUE - 100) Evaluation--;
Of course, when the side to move is mated, you should return evaluation
"-MATVALUE".
And that is all! Then you do not need care for it more when hashing or using
hash values. I use this solution in my chess program now (I had also big
problems this kind for a long time) and it works fine!
Sorry for my poor English.
Filip Tvrzsky
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