Unfortunately nothing I seem to do gets close to the strength of my engine with the PeSTO values. I think the best I've been able to do is something like a 40-50 Elo loss in self-play.
For example, I hand tuned to something like the following for bishops:
Code: Select all
-20, -10, -10, -10, -10, -10, -10, -20,
-10, 0, 0, 0, 0, 0, 0, -10,
-10, 0, -5, 5, 5, -5, 0, -10,
-10, 5, 0, 15, 15, 0, 5, -10,
-10, 0, 0, 15, 15, 0, 0, -10,
-10, 0, -5, 10, 10, -5, 0, -10,
-10, 25, 0, 15, 15, 0, 20, -10,
-20, -10, -15, -10, -10, -15, -10, -20,
Code: Select all
-24, -6, -16, -10, -16, -14, -12, -20,
-6, 4, 0, 2, -2, -6, -6, -12,
-6, -4, -7, -1, -1, -7, -2, -14,
-14, -1, -6, 9, 9, -6, 3, -14,
-12, -2, -2, 11, 9, -4, -6, -16,
-16, -4, -7, 8, 6, -7, -4, -16,
-10, 19, -6, 9, 9, 4, 14, -16,
-26,-16, -11, -6, -6, -11, -8, -22,
I'm really at a loss here now. I'm not sure what to do.