RPS in the strictest sense is a totally balanced game which cannot have a winning strategy if played completely logically. Yet, all the RPS algorithm starts fr

RPS in the strictest sense is a totally balanced game which cannot have a winning strategy if played completely logically. Yet, all the RPS algorithm starts from the same premise. The counter-intuitive reason why there can be winning strategy to RPS is that people try to devise winning strategies. Once you deviate from purely randomly choosing RPS, your adversary can try to analyze your past moves to create a model of your strategy and used that model to defeat you. As for us poor humans, we're really bad at choosing randomly, so the best RPS players are very good at picking up what type of players you are. PS: and in any population of players in a tournament, the mere presence of a few that want to have a non-random strategy will win over those without strategy. The strategy-less will just have a random streak of wins and losses no matter who they are facing. Of those with a strategy, the one with the best analysis of their opponent will win.