And now, g4 had done it. The bot had tried to evaluate a position where, for a single, impossible nanosecond, the value of a move equaled nothing divided by nothing. A crack in the math. A black swan.
sudo chmod 777 self_modify.py echo "eval_func = lambda pos: -pos.score if 'g4' in pos.last_move else pos.score" >> self_modify.py
A joke. A paradox. He injected a rule that made the bot hate its own previous move whenever it pushed the g-pawn. Then he sat back.