My opponent has won with paper, rock, and scissors in the last three rounds, showing variety. There appears to be a potential pattern where the opponent might be using a strategy of playing what would beat my previous move. Since I played paper in round 6, they might expect me to play scissors in this round, which would lead them to choose rock. By choosing rock myself, I'm hoping for a tie at minimum, breaking the losing streak. Additionally, rock is a psychologically "strong" choice when someone is behind and trying to rebuild momentum.