My main goal was to create a player without embedding any human developed strategy (such as left-down-up). This would obviously be less optimal but more general

My main goal was to create a player without embedding any human developed strategy (such as left-down-up). This would obviously be less optimal but more general purpose. If you are interested in domain specific algorithms, the same StackOverflow question I linked features a solution using a min-max variant using an elaborate hand-crafted scoring function. It's best run scored 794076 points and got the "32768" tile.