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by spyckie2 4484 days ago
You can add a simple heuristic to the scoring to increase the win rate by a lot - weighted corners.

Add the logged value of the numbers on the corners to the score and the higher numbers will tend to 'stick' to them. This also serves as a mechanism to guarantee that the new numbers appear away from the large numbers, which tend to block them from combining.

I also turned down the compute time to 20ms and it still runs well.