Glass tic-tac-toe drinking game

Tic-tac-toe drinking game, glass.     Tic-tac-toe game for 2 players, including 9 shot glasses and a glass tray.   In principle, in the game of tic-tac-toe, it is a draw in each game, provided you are a little concentrated.   In this case, the concentration of the players can very quickly deteriorate depending on the contents of the glasses... Alcohol abuse is dangerous for health. To consume with moderation.