This project was worked on two occasions. Implementing the website with a trainable genetic algorithm was my final project for the BMS. Then during my Bachelor I extended the training with a particle swarm optimization algorithm. So now you can self-train bots with different optimization algorithms and compete against them in Ultimate Tic Tac Toe. Try it out here or play a round below. There are rumors of people beating the hard level, but neither did I do it myself nor have I witnessed anyone else do it anytime.
Back to projects for more. This was a final project during my BMS education.