Rock Paper Scissors Game
Play rock-paper-scissors against the computer. Choose your best of 1, 3, 5, or 7 with full stats tracking and choice history.
Round 1 of 1
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Draws
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How To Play Rock Paper Scissors Against the Computer
Pick your match length (best of 1, 3, 5 or 7), then tap rock, paper or scissors. The computer picks at the same time and the screen shows both choices with the result: win, lose or draw. Wins and losses are tallied at the top; the match ends when one side reaches the rounds-needed total (best of 5 ends at 3 wins, best of 7 at 4 wins).
Rock beats scissors, scissors beats paper, paper beats rock - the same loop as a thousand schoolyard arguments. The computer picks each round independently with a uniform 1-in-3 chance for each option. Across hundreds of rounds you will land at roughly one third wins, one third losses, one third draws no matter what strategy you try. Short matches are won and lost by streaks of luck, which is why best of 7 is the more competitive format.
Strategy, Variants and the Big Bang Extension
Against another human, basic strategy works because humans are not random. About 35% of human first picks are rock, so leading with paper has a slight edge. Players also tend to repeat winning hands and switch after losing. None of this works against the computer here because the computer is genuinely random.
The classic 3-option game has a 5-option extension: Rock Paper Scissors Lizard Spock, invented by Sam Kass and Karen Bryla in 1995 and popularised by The Big Bang Theory. The 5-option version reduces ties from 33% to 20%, which is why competitive play prefers it. This tool runs the classic 3-option rules; for a binary decision try the [Coin Flip](/coin-flip), or [Spin the Wheel](/spin-the-wheel) for any number of options.
Frequently Asked Questions
Is the computer cheating?
No. The computer picks one of the three options with equal 1-in-3 probability before seeing your move (using JavaScript's random number generator). It cannot react to your choice. Long-run results trend to roughly 33% wins, 33% losses, 33% draws.
What is best of 1, 3, 5 or 7?
Best of 1 is a single round. Best of 3 ends at 2 wins, best of 5 at 3 wins, best of 7 at 4 wins. Longer matches reduce the impact of luck (one unlucky round matters less in best of 7 than in best of 1).
Can I play rock paper scissors lizard spock here?
Not in this version - this tool runs the classic 3-option rules only. The 5-option Lizard-Spock variant has different win conditions (lizard poisons Spock, Spock vaporises rock, paper disproves Spock) and would need its own page to render those properly.
Is there a winning strategy against the computer?
No, because the computer's pick is genuinely random. Any pattern you try will average out to a 1-in-3 chance per round. Against another human there are exploitable patterns (rock is the most common opening, players switch after losses), but none of those apply here.
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