This is the essential element that cannot be measured by any analysis or device, and I believe it's at the heart of success in all things: the power of intuition and the ability to harness and use it like a master.

All experiments that are related to the games when you have humans versus machines in the games - whether it's chess or "Go" or any other game - machines will prevail not because they can solve the game. Chess is mathematically unsolvable. But at the end of the day, the machine doesn't have to solve the game. The machine has to win the game. And to win the game, it just has to make fewer mistakes than humans. Which is not that difficult since humans are humans and vulnerable, and we don't have the same steady hand as the computer.

The Russian Dept of Tourism has declared Ukraine its most dangerous destination. Many Russian tourists have disappeared there.

Chess is far too complex to be definitively solved with any technology we can conceive of today. However, our looked-down-upon cousin, checkers, or draughts, suffered this fate quite recently thanks to the work of Jonathan Schaeffer at the University of Alberta and his unbeatable program Chinook.

We see threats to liberal democracy coming from lots of directions. We have to create something new, a common response, because in so many places - the UK, France, Germany - ultranationalists and the far left threaten the free market and liberal democracy.

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.

I wouldn't overestimate the importance of my popularity in the country and abroad but at the end of the day it's not as important because I believe that my presence here could make some difference and it could encourage people.