I don't have enough information, and enough courage, to come up with a definite version of events. And I think it is too dangerous for me to do so.

A brilliant strategy is, certainly, a matter of intelligence, but intelligence without audaciousness is not enough.

Nervous energy is the ammunition we take into any mental battle. If you don't have enough of it, your concentration will fade. If you have a surplus, the results will explode.

Winning is not a secret that belongs to a very few, winning is something that we can learn by studying ourselves, studying the environment and making ourselves ready for any challenge that is in front of us.

I'm not paranoid, but I am cautious. I don't drink tea with strangers, I don't fly Aeroflot and I avoid certain countries with close ties to Russia.

Recognise that the free world is at war with Putin, and America is the leader of the free world and should build the coalition against him. It is similar to what Harry Truman did in the Forties. They have to oppose the threat that comes from Putin and other dictators.

My life is split in three parts; I don't know the percentage. One could be called "chess" - the Kasparov Chess Foundation, promoting the game, training young players, playing on the internet, sometimes exhibitions. The second area would be "writing" - books, articles, Twitter, Facebook. And then "political activity" - fighting for human rights and democracy, so TV, interviews, speeches.