Arch-Rival Tic-Tac-Toe
Sherlock Holmes vs. Dr. Moriarty
Tesla vs. Edison
Coyote vs. Road Runner
Romulus vs. Remus
Alien vs. Predator
Charles Xavier vs. Magneto
Red Sox vs. Yankees
Hamilton vs. Burr
Mozart vs. Salieri
Dr. Jeckyll vs. Mr. Hyde
Spy vs. Spy
Caravaggio vs. Baglione
Hector vs. Achilles
Michael Corleone vs. Fredo Corleone
The Sharks vs. The Jets
The Montagues vs. The Capulets
Hatfields vs. McCoys
Neo vs. Agent Smith
Mac vs. PC
Nature vs. Nurture
Jacob vs. The Smoke Monster
X score:
O score: