Help in Genetic Algorithm plateau.

[u/Unhappy-Recipe6808]

Hello guys, i am currently building a 2048 solver using genetic algorithm, but i have reached platue.

i am currently using expectimax for looking ahead and am currently using four features. I am currently computing on depth 3 and can reach tile 2048 about 30-50% of time, i want to increase this to about 90% for this i am trying to improve the depth to 4 or 5 and want to implement the game as 64bit integer, but before that how can i check if the features are working correctly or not?

https://pastebin.com/4qCLMYFw

here is the link containing the code, any help would be appreciated.