Obviously carlsen because tal was on pre- computer era. The chess opening theory, tactics, strategy has been improved much more from tal's era to carlsen's era. Even magnus has studied a lot of old grandmaster's game including tal. So he knows very well how their( old grandmaster's) playing style actually was. And one thing about magnus is that he examine his opponent and then make his own gameplan to beat the opponent. So i think magnus is far better than tal.
@@footballbestmomentsclip yah correct but magnus himself is an engine so you can understand that he has each and every correct reply to tal's unpredictable moves or sacrifice.
The achievement of Carlsen is epic, non Comparative.. But still we cant compare Tal and Carlsen because at that time there was no.computer no chess engine! So its better to say they are the legends of their time!