During a stoppage of the Knicks’ Game 5 win over the Pacers at the Garden on Thursday, a pair of fans went head-to-head in a full-court game of tic-tac-toe.

The world’s tiniest game of Tic-Tac-Toe is played using DNA and takes six days to complete, but the game was about much more than simply crowning a winner, Kristin Houser explains for Futurism.