Checkmate is a game position in chess in which a player's king is threatened with capture and there is no legal move to escape the threat. Checkmate ends the game. Moreover, chess is a mirror of life, rich in metaphors for human experience. It is a pitched battle to the finish between opposing armies, yet completely non-violent, with no injuries ever reported from playing. It is a testing ground where we can experiment and act out personal dramas with no consequences other than wiping the board clean and starting over. A blend of primitive instinct and sophisticated calculation, it lets a player directly engage the mind of another human being—learning from experience, memorizing common patterns, methodically building a position, setting traps, analyzing variations, and finally moving in for the kill. And it is a canvas whereupon great players create masterpieces, like famous paintings, that can be enjoyed by generations to come. Here are a few things I have learnt from the ga...