Experiment · 1 min

doors

A question worth exploring.

PROBABILITY LAB / 001

One hidden star. Two empty rooms. No money, just curiosity.

YOUR SESSION0 / 0wins / rounds

A few rounds can surprise you. Explore many trials below.

ZOOM OUT

What if you played 10,000 times?

Compare both strategies on the same random prize placements. Each run is a fresh sample, separate from your session.

Trials

Each set of three doors is one round. The gold outline is the first pick; the star is the prize.

Staying wins Switching wins

Staying wins—

Switching wins—

Both strategies share the same 100 rounds. Colors mark which strategy wins each round, not two separate samples. The split varies every run.

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Observed rates fluctuate. More trials tend to stabilize the estimate, not guarantee a particular result.

BEHIND THE SURPRISE

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