I’ve improved my endgame condition. When testing the bot I found that during endgame it would sometimes move its king to the corners of the board. I realised that this was because it saw a queen on the board and due to the poor endgame condition it thought this meant that it wasn’t endgame and instead used the early / mid game position bonus table which rewards staying safe in the corners. However in endgame moving the king to the corner isn’t good as it makes checkmates easier for the opponent and means that the king isn’t used to help checkmate the opponent, which is crucial in certain endgames such as a king and queen against just a king. In situations like this the king is necessary in achieving a checkmate. I changed it to being if there is less than (2 black queens and 2 white queens and less than 16 pieces) or if there is less than 5 pieces not including pawns. This is more accurate and ensures the king actually helps win and tries to stop a checkmate on itself. I also improved my zobrist hashing by fully incrementing it. Previously I incremented it for everything except castling and en passant however now these are implemented as well. I also noticed that the bot would walk its king towards the centre of the board during the opening which puzzled me until I read through my code and realised its because I set totalPieces to 0, asked if it was endgame, and afterwards set totalPieces to the true value. This was pretty difficult to find as I couldn’t see it by just seeing if it thought it was endgame at the end of a move. This makes sure I can actually get my hashes in O(1) time. Next I am going to try and make my arrows darker when over each other.