>But you are stopping right at the atari, and then pile on playouts that make >it seem work...
Yes, something like that may be the situation that turns the result. Suppose the tree stops at a point where there are two moves, a blunder that leads to a quick end, and another move which leads to an inconclusive continuation. If the tree can't grow, then random playouts will take the "blunder" branch 50% of time, whereas if the tree were allowed to grow the non-blunder branch would quickly dominate. Overall, once the tree is frozen, some percentage of the leaf nodes will be permanently giving bad feedback. _______________________________________________ Computer-go mailing list Computer-go@computer-go.org http://computer-go.org/mailman/listinfo/computer-go