[onion2k]

Yes, but it doesn't help me code better. How it does help is using chess as a problem space. Chess is such a beautiful game to write code for because it's tightly constrained and strategically flexible. For example, one of my side projects is a chess game where each player is actually a team of players who're all playing the same game - everyone on Team White enters a move, and the most commonly entered move is the one that actually gets played, then Team Black do the same, and so on. There is so much you can do to mix coding and chess.