<prompt> Pedzisa mutsara unotevera: Akashanda semutevedzeri waViswanathan Anand, achibatsira aimbova shasha yenyika mumutambo wake wakabudirira wekudzivirira zita raVladimir Kramnik, muna 2010 achipesana naVeselin Topalov, muna  <response>: Muna 2012 vairwa naBoris Gelfand, muna 2013 uye muna 2014 vairwa naMagnus Carlsen. 