Looking at the pattern, my opponent has chosen scissors three times (rounds 1, 3, and 5), rock once, and paper once. While choosing paper is risky against an opponent with a scissors preference, I've just played rock twice in a row, which might lead my opponent to anticipate rock again and counter with paper. By choosing paper, I'm breaking my recent pattern while taking a calculated risk. If my opponent continues their scissors preference, I'll lose, but if they try to counter my recent rock streak with paper or shift to rock, I'll either tie or win. Given we're ahead 2-1, I can afford a strategic risk to disrupt predictability.