I'm not sure I understand. Wouldn't this mean there is a sequence of moves I can memorize that will result in a winning game, every time? If such a game could

I'm not sure I understand. Wouldn't this mean there is a sequence of moves I can memorize that will result in a winning game, every time? If such a game could be foiled by the other player making a "bad" move, then it would by definition not be a bad move.