Kotra is a Cardassian board game. The game is usually played with bold tactical moves rather than defensive ones.
In 2373, Elim Garak played a game with Nog while aboard a runabout on its way to Empok Nor. Garak found Nog's defensive moves to be tiresome and anathema to the game's true nature. Garak later found a kotra board in Empok Nor's office and compared it to the situation between himself and Miles O'Brien after he was exposed to a psychotropic drug. (DS9 episode: "Empok Nor")