Four markets, one month at a time. You get prices and a newspaper, and nothing else — no chart of what happens next, no name you could look up.
Prices are simulated and companies are fictional, calibrated so each market’s index and each company’s peak-to-trough fall match the documented figures for the real event it is modeled on. Fictional names are the point: if you could recognize the event from the tape, you would be trading with hindsight instead of judgment.