I’ve added a better endgame condition! Now endgame is determined if (there are no queens and less than 16 pieces on the board) or if there is less than 8 pieces on the board. This is better because it means when pawns promote the king doesn’t run to the corners or use the other position bonus table. I also improved my bot’s 3 fold repetition check when searching for moves by using a dictionary with hashes as keys and number of times they have appeared as values. This lets me check if I have been in the position 3 times before in O(1) instead of O(n). I also improved my makeMove() and previousMove() functions by checking if its the bot searching for moves and if it is then only storing the key information instead of everything. To help simplify previousMove() I instead created a seperate function called unmakeMove() (clearly related to makeMove()) to undo moves when the bot is searching. I also changed the time the bot has to move from 3 seconds to 1.5 seconds so that it feels snappier. Probably cos I have 0 patience when I want to test if the bot works :). Next I am going to try and make my bot faster by improving the move ordering so that alpha beta pruning can be more effective.