Hopefully Robert Cowley, who plays chess for “mental exercise, social interaction, discipline and prestige”, has been able to improve the discipline part of his game since this incident in 1998.
He played for an Australian state championship versus one Ms. Ngan Koshnitsky, and lost 4-2. He complained that her cleavage was a distraction, preventing him from fully concentrating.
By the way, you can note that Koshnitsky’s breasts are not significantly sized.
(As an aside, if any of you ladies try this “strategy” against me, don’t bother, ’cause it doesn’t work. Complete nudity may; I’ve never played chess against a nude chick before.)