Chess is a unique cognitive nexus, a place where art and science come together in the human mind and are then refined and improved by experience.

I reckon that there won't be an intervention in the near future, because Georgia's military adventure revealed the weakness of the Russian army.

At any time the atmosphere in the West could change, for which determined political will I do not see at the moment is a necessary prerequisite. From the sidelines, it seems that he's caught up in his own exorbitant ambitions.

My mother lives in Moscow, and I would like to visit her. Now she always has to travel to Finland or a Baltic country to meet me. But I have to expect that my papers would be confiscated in Moscow immediately, and that they would harass my family. I can still have more impact in the West with my books and lectures.

Though I would have liked my chances in a rematch in 1998 if I were better prepared, it was clear then that computer superiority over humans in chess had always been just a matter of time.

Many Republicans who traditionally were for a positive role in the world, anti-Russian, now they want to defend their party and leader, and they don't care about real arguments. The paradox is the Democrats were so timid in criticising Vladimir Putin. Barack Obama appeased him and now they are criticising Putin's interference in American democracy. It is a strange reversal of the roles.

Rosneft, for instance, was mainly built upon capital stolen from [jailed oligarch Mikhail] Khodorkovsky's company, but the IPO was successful with many Western corporations investing in it. This means that it is extremely difficult to detect these assets in their pure form.