The computer's choice is purely random, generated by `crypto.getRandomValues()`. There is no analysis of the player's history, patterns, or any form of 'intelligence', it is equivalent to a fair 3-sided die.
Rock, Paper, Scissors
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Rock Paper Scissors
The classic decision game with animation
The classic game with true randomness
Rock paper scissors is the universal tiebreaker: two players show one of three moves at the same time and a circular rule decides who wins. In this version you play against the computer or in 2-player mode on the same device, with a countdown (3, 2, 1) and simultaneous reveal that recreate the tension of playing live. The computer's move is drawn with `crypto.getRandomValues()`, the browser's cryptographic generator, so there is no predictable pattern and no memory of your previous moves. The scoreboard tracks wins, losses and draws automatically, and you can reset it whenever you like. It's ideal for settling small disputes, practicing pattern reading against friends or just passing the time, everything runs locally, with nothing to install.
Three possible moves
- Choose rock, paper, or scissors by clicking the corresponding button.
- A countdown (3, 2, 1) is displayed while the computer 'thinks'.
- Choices are revealed simultaneously. The scoreboard tracks wins, losses, and draws.
Sources and references for this tool
These references help contextualize formulas, standards, APIs and limitations used on this page. They do not replace professional validation when a result has legal, financial, medical or operational impact.