Former chess world champion Kasparov makes a move against his opponent Karpov during the last game of...
Former chess world champion Garry Kasparov (R) makes a move against his opponent Anatoly Karpov during the last game of their 25th anniversary match in Valencia, September 24, 2009. Kasparov won the three day match. REUTERS/Heino Kalis (SPAIN SPORT CHESS)