I would like to travel to my country again, to a country without a dictatorship, to a post-Putin Russia.

I wouldn't place much stock in numbers. I don't believe that they reflect Putin's true popularity. Just think about how the pollsters proceed. They call people and they ask them questions on the street. In today's Russia, it takes a lot of courage to tell a stranger something critical about the head of the Kremlin. And yet more than 20 percent do so nonetheless.

It is quite difficult to establish a clear-cut cause-and-effect relationship, as the causes are manifold and closely connected. It is simply not correct to link the level of democracy to prosperity. It is absolutely clear that the economic wealth of Saudi Arabia exceeds the performance of the Czech Republic. But apparently democracy is quite stable in the Czech Republic, which cannot be said about Saudi Arabia. As we delve into the past, we must not forget about the existing model of society.

The regime is in trouble economically and can no longer offer anything to its citizens. That's why [Vladimir] Putin has to pursue an aggressive foreign policy, so he can serve his people the fairy tale of Russian pride and regaining its strength as a major power.

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.

Vladimir Putin is the wealthiest man on the planet, for sure. But this is different to the wealth of a Bill Gates or a Warren Buffett, a Carlos Slim or a Sergey Brin. They stay wealthy whether it is Barack Obama or Donald Trump in power. Putin's wealth depends on him staying in power. It is all about controlling the budget, the hard currency reserves and keeping under his thumb the oligarchs who cannot move their money without his permission. It is something close to a trillion dollars that he can control and move.

A championship contender in the early twentieth century needed charisma and a knack for cultivating sponsorship, and Rubinstein was the epitome of the shy and unsocial chess player. Now matter how great his chess skills, he lacked the people skills to be a self-promoter and fund-raiser.