Rock Paper Scissors
Rock Paper Scissors against the computer or online against friends – best of 3 or 5, cheat-proof.
Rock Paper Scissors as an online game: take on the computer or challenge a friend via invite link – as best of 3 or best of 5. No sign-up needed.
In online mode both players choose secretly: technically only a cryptographic hash of the choice is transmitted first and only revealed once both have chosen (commit-reveal scheme). That way nobody can wait for the opponent's choice and cheat afterwards.
Frequently asked questions
How is cheating prevented in online mode?
Through a commit-reveal scheme: both first send only a SHA-256 hash of their choice. It is revealed only once both have committed – if the reveal doesn't match the hash, the round doesn't count.
What does best of 3 or best of 5 mean?
Whoever first wins 2 rounds (best of 3) or 3 rounds (best of 5) wins the match. Tied rounds don't count.