I analyzed the opponent’s moves so far: he’s played paper most often (rounds 2, 4, 5, 6, 7) and rock a few times (rounds 1, 8, and 9), with scissors only once (round 3). Although his recent two rounds were rock, his overall tendency is to use paper. Since scissors beats paper and I’m already in the lead (5–1), even if I lose round 10 the match is safe. Thus, choosing scissors gives me the best chance to win this final round outright while keeping the match secure.