Tic-Tac Theory

Both Sheldon and Leonard want to dress up as 'The Flash' for the costume party but only one gets to do so. They settle on deciding this with a game of tic-tac-toe. Sheldon always goes first and Leonard goes second. However, both of them are brilliant scientists and play the game optimally thus ending up drawing each game. To avoid this, Penny and Amy are asked for help. Amy plays Sheldon's first