It seems to me that top players have the best understanding of the game ever. So how do they prepare for an important tournament?
I don't see how they would practice tactics or solve puzzles, so other than memorizing opening theories and understanding them, what else goes on in the prep? What does team do and how do they really help a player? I have a heard a lot of things, especially during this candidates about seconds? What exactly is their job and why are some better than others?