The most likely primary explanation of the break is, however, financial. Last year's agreement that the two legends were working together noted that Kasparov's services were "expensive", They have included training camps in Croatia and Morocco and unique access for Carlsen to Kasparov's feared personal database, containing many potent opening novelties which their owner never got the chance to use in his own games.
Technically speaking he remains work in progress and to the outsider this is an unnatural moment for the pair to go their separate ways. So it is easy to think back to Kasparov's stormy disagreements with fellow grandmasters in the 1980s and the 1990s, when he had the reputation of a serial killer of chess organisations, or to his long feuds with Anatoly Karpov and Vlad Kramnik. Kasparov can be overbearing and it would not be a surprise if the laid-back Carlsen began to find his teacher's personality oppressive.
Such is the human heart, sometimes.
Read full article at guardian.co.uk