Hi!
On Fri, Jan 15, 2016 at 04:54:18PM -0500, Álvaro Begué wrote:
> In their standard configuration, MCTS engines will sometimes let lots of
> groups die after they know the game is hopeless, or if they have a large
> advantage and they still see a guaranteed victory after the group dies.
> That's why I tried to configure Pachi to maximize score for this particular
> purpose. However, as I said, I couldn't get Pachi to really maximize score
> and play the games to the bitter end; in a good fraction of the games there
> were dead stones left on the board, and in some games the penultimate eye
> of a group was plugged for no good reason (probably because of some bug in
> determining if it's OK to pass).
Two ideas re Pachi:
(i) In uct/uct.c maximize_score section, try changing the
max_losing_komi from 30 to, say, 300.
(ii) Try to work out that if Pachi decides it's losing, the gameplay
is switched over to GNUGo to finish the game.
Petr Baudis
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