Kalshi has launched a $1 billion "Perfect Bracket Challenge" for the NCAA 'March Madness' tournament, offering the grand prize to anyone who can perfectly predict all game outcomes. This initiative mirrors Warren Buffett's similar challenge and aims to capitalize on the widespread popularity of the tournament. Participants can submit their predictions for free, with a $1 million prize for the most accurate prediction if no perfect bracket is achieved. The NCAA 'March Madness' tournament, starting March 18, features 68 college teams competing in a single-elimination format. The event is a major draw for sports enthusiasts and prediction markets, with Kalshi and Polymarket both launching related prediction markets. Kalshi's challenge has sparked significant interest, with some speculating that AI could potentially solve the complex probability puzzle of predicting all outcomes correctly.