For me right now I think being the world number one is a bigger deal than being the world champion because I think it shows better who plays the best chess. That sounds self-serving but I think it's also right.

One of the things that first attracted me to chess is that it brings you into contact with intelligent, civilized people - men of the stature of Garry Kasparov, the former world champion, who was my part-time coach.

You have to choose the move that feels right sometimes; that's what intuition is.

I really enjoy the experience of playing humans. The psychological game is so much more important.

My former coach, Simen Agdestein, used to be the best player in Norway.

You need to have that edge, you need to have that confidence, you need to have that absolute belief that you're - you're the best and you'll win every time.

I think with chess as with everything, marketing is the main issue.