What is How Random Are You??
How Random Are You? is a free game that tests how unpredictable you really are. You say numbers from 1 to 9 out loud, or type them, as randomly as you can. Before each number the "house" seals its guess in an envelope, then opens it when you answer, and a split-flap board shows how far ahead of chance it is.
The house runs ten small predictors at once and trusts whichever has been right lately. Some count which number tends to follow which, some track your steps up and down, and one notices the numbers you have not said for a while, because people keep reaching for the ones they have neglected. It starts from data collected in a psychology study and adapts to you as you go. At the end, your ticket compares you with people from that study.
Speech recognition runs inside your browser: a speech pack of about 31 MB downloads once and your audio never leaves the page. It was made by Shaun Pedicini and was a popular Show HN in October 2026.
Main Features
- Say numbers out loud or type them
- A predictor that guesses each number before you say it
- Ten small prediction models working together
- A result that compares you with people from a psychology study
- Speech recognition that runs in your browser; audio never leaves the page
- A short warm-up before the scoring starts
How to Get Started with How Random Are You?
- Open the game at lab.specr.net/rigged-draw.
- Choose whether to say the numbers or type them.
- If you speak them, download the speech pack once.
- Start the draw and keep calling numbers from 1 to 9.
- Read your ticket at the end to see how predictable you were.
How Random Are You? Pricing
How Random Are You? is free in your browser, with no account.
Who Should Use It?
- Anyone who thinks they can be truly random
- Psychology and statistics students
- Teachers looking for a hands-on lesson on randomness
- People who enjoy quick mind games
How Random Are You? Alternatives
- Human Benchmarktest your reaction time and memory
- Akinatora genie that guesses who you are thinking of
- The Evolution of Trustan interactive guide to game theory
Frequently Asked Questions
Is How Random Are You? free?
Yes. It is free in your browser, with no account.
How does the game predict my numbers?
It runs ten small predictors at once, such as which number tends to follow which and which numbers you have not said for a while, and trusts whichever has been right lately.
Does How Random Are You? record my voice?
Speech recognition runs inside your browser and your audio never leaves the page. You can also type the numbers instead.
Why are people bad at being random?
People avoid repeats and keep reaching for numbers they have not used lately, which makes their choices easier to predict than true chance.