Improved efficiency! I’ve improved the efficiency of the bot by sorting the possible moves better. This is useful as it means when the alpha beta pruning goes over everything it searches the best trees first. This means that it can prune more branches. I also removed some random integer conversions on my bitboards as they did nothing, since the bitboards are already integers. I also removed a restriction that didn’t let the player do anything on the bot’s turn. Now the player can draw during the bot’s turn. I also went across all of my code and changed it to use (row, column) instead of (column, row). This helps keep things cleaner. I then also changed the bot calculations from from using the fullyLegalMoves() function to the movementLegalMoves function(). fullyLegalMoves() just makes sure that the king isnt in check after the move. If it is then it undoes the move. By insteading doing this in my bot.py it means I can just not undo the move and immediately remove that move. This means that I don’t need to undo the move more times than needed. This is very helful as undoing a move takes up computing power. I also completely replaced the piece names with integers as this would be slightly better and I could use bit operations with integers. As well as this I also added a timer that shows how long the bot took to make its move. By adding all of these changes the bot reduced its time on the first move as white from ~4 seconds (with depth 4) to 3 seconds (with depth 5). This shows that it is much more efficient as, time taken increases exponentially as depth increases. As well as this 3 seconds is the earliest the bot can move and so the true speed is likely much less.