Free interactive tool
Lottery Monte Carlo Simulator
Run reproducible k-of-n experiments in your browser and compare adjacency and sums with exact theory.
Inputs and results stay in this page. These tools set no cookies, save no browser preferences and send no input data to our server. A CSV downloads only when you request it. Displayed probabilities are rounded; combination counts use exact integer arithmetic.
Understand the result
Monte Carlo Simulation: Learn Probability by Repeating the Model explains the derivation and common interpretation errors. Compare it with the published Consecutive numbers: the exact answer meets a million draws.
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