Okay, I'm a geek. I confess, the first thing I thought of was "Huh. That WOULD be a staggeringly interesting study. What effect would playing against a moderately attractive and completely nude female have on a chess master's rating?"
I mean, all the criteria are measurable. The game is free of any randomness, the rating is a reliable measure of skill, so the net result of playing against attractive naked women can have a statistically measurable effect.
I'm presuming a simple relational loss. IE., -10% to rating (or whatever). In such case, I imagine the original rating (as a number) of the master matters less than...I dunno, perhaps age? ?Maybe?
Callisto 1 Mission Log, Day 1,325: I swear to god, if Logan does that spoon tapping thing again I will use it to dig his other eye out of his head. Also, the toilets stopped working sometime last month. Probably should've mentioned that first.