I made this to simulate a math problem a friend asked me. "Flip 100 coins, marked 1-100. Each second, Alice and Bob simultaneously check on coin. Alice goes in order (1,2,3,...); Bob checks the odd coins, then the even (so 1,3,5,...,99,2,4,6,...) Who is more likely to see 26 total heads *first*?"
Credits to @littmath on twitter for posting this question.