Really? I first came across the matchbox tic-tac-toe concept in Martin Gardner's Scientific American column as a teenager, and the first thing I did was some b

Really? I first came across the matchbox tic-tac-toe concept in Martin Gardner's Scientific American column as a teenager, and the first thing I did was some back-of-the-envelope calculations on how many boxes would be required for chess. If I recall, it was larger than the number of atoms in the universe. Please don't tell me I'm unusual in this regard.