Lab — Game

Rock Paper Scissors

Rock Paper Scissors is a free online tool that lets you play a best-of-five match against a bot that counters your most-played move — first to 3 round wins takes the match, all in your browser.

Score — first to 3 wins

You

Ties

ties don't count

Bot

Pick a move — or press R, P, S

Pick a move to start the match.

The bot starts out guessing at random.

Round history

No rounds yet — pick a move.

Lifetime stats

Rounds: 0 · Win rate: — · Streak: 0 · Best streak: 0

How the bot works

The bot is openly "suspiciously lucky": 60% of the time it plays the move that beats your most-played move so far; the other 40% it picks at random.
Ties in most-played count are broken in the order rock, then paper, then scissors.
Nothing leaves your browser — stats live in localStorage only.