Don Dailey wrote:
You are right, the d3p version rallied to come from behind and staged
an exciting and dramatic comeback:
Rank Name Elo + - games score oppo. draws
1 d3p 2016 77 75 21 52% 2000 0%
2 base 2000 75 77 21 48% 2016 0%
- Don
If you'd like to try a simple pruning scheme that improves playing
strength on 19x19, then I'd suggest progressive widening. It only works
in the tree, not in the playouts. You don't need complex patterns for
progressive widening to work. You can simply use distance to the
previous move. Search moves at distance 1 from the previous move for N
playouts. Then add moves at distance 2 for N*x playouts. Moves at
distance 3 for N*x*x. N and x are the two parameters that need tuning. I
expect you can get tremendous strength improvement on 19x19 with this
simple scheme.
Rémi
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