Heuristics take time.
The good news is I have made Four-Play smarter. If you can defeat it now, you know something about the strategy that I don't. The bad news is it takes about 3 1/2 minutes to plan a move. You can reduce the time by setting the frame rate to maximum in z26, for example "z26 -r1000 fourplay_dec11.bin". My pentium 4 unit can plan moves in about 30 sec.The next step will be to try alpha-beta pruning to see if I can cut the time to a reasonable amount. If not, I'll have to choose a different heuristic.EDIT: After about a dozen attempts, I was able to win.
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