Anatoli Karpov and Garry Kasparov face off again , in Valencia , Spain . Match comes 20 years after their epic fifth world championship battle in Spain . Kasparov wins first two games in the 12-game rematch . MADRID , Spain ( CNN ) -- Their 48-game Moscow match was controversially stopped citing health concerns .
Anatoli Karpov and Garry Kasparov face off again , in Valencia , Spain . Match comes 20 years after their epic fifth world championship battle in Spain . Kasparov wins first two games in the 12-game rematch . Their 48-game Moscow match was controversially stopped citing health concerns .