Chess is An Enigma

Finished lunch. On the way back to my desk, in the lift, a colleague of mine asked how I spent my Christmas/New Year vacation. Indulging in my hobby, I said. Played chess. As expected, that immediately provoked a conversation.

Then he observed: "Chess is an enigma, isn't it?"

I must say, I've heard many "chess is..." statements, but certainly not that one.