The journey from the Von Neumann to the Niemann affair has much to teach us about the changed landscape of the sport The journey from the Von Neumann to the Niemann affair has much to teach us about the changed landscape of the sport There really is, it turns out, a true story involving cheating in chess and a vibrating crotch. Only this one is a whodunnit that dates back more than 30 years and was only solved last week. Imagine the scene at the World Open in Philadelphia in 1993 when a