Master probability, statistics, and strategic thinking. No real money — just brainpower and bragging rights.
Games
20
Categories
7
Start Chips
100
Flip a mystery coin to gather data. Is it fair or biased? Fewer flips = bigger payout!
Identify real coin flip sequences from fake ones. Can you spot the patterns?
Predict the next flip after a streak. Will you fall for the fallacy?
Compare two poker hands and predict which has better odds pre-flop.
Choose the winning hand from two completed poker hands.
Calculate probabilities on the turn. What are your chances on the river?
Practice card counting and make optimal betting decisions.
Roll two dice and detect if they're fair or loaded. Learn about bell curves!
Master craps probabilities and make educated bets on dice outcomes.
Use Bayes theorem to update disease probabilities based on test results.
Update suspect probabilities as new evidence emerges in a mystery.
Estimate real-world quantities and learn about calibration.
Predict where values fall on a normal distribution.
Estimate prices and learn about economic distributions.
Calculate expected values and make optimal deal decisions.
Decide when insurance is worth it based on expected value.
Understand sampling error and confidence intervals in polling.
Learn about regression to the mean through sports and performance data.
Build investment portfolios and understand risk vs. reward.
Experience the famous Monty Hall problem through interactive gameplay.