AB Guess is a game to guess 4 digits with bulls and cows. the rule is here.
I build an AI program with MonteC Carlo tree search. I test the program 100 times, it takes an average of 4.52 steps to guess the number.
You can run
./game.py --game_num=5 to compete with AI. Players with less step will win (I can't beat my AI😂). Good luck and have fun!