It's an interesting article that was referred to me twice this morning (one HT goes to Marc Beishon), and I'll pass it along to you. There are three bits on chess, but unfortunately the first two only tell us what we all learned as beginners - strong players value the center - while the third offers some context-free (and thus relatively useless) statistics. (I blogged about that grid already, here, and tried to derive at least one slightly interesting result from those numbers.)