Nope, it's implying they don't know how to play Chess, exactly what he said. If you don't know the technique of a game, you cannot play it effectively. You're projecting right now. I don't know how to play Chess, but I didn't leap to the conclusion that the writer must be calling me stupid. Just means I don't know how to play the game. I do know Ice Cube's tactics are naive, and I play Poker VERY WELL.