This obligation to move can be a burden to a player without strategic vision.

Vladimir Putin likes Donald Trump because he supports this view of the world, that the big guys can carve it up, sit and talk about the world, carve up the countries, shape borders. For Putin, treaties, alliances, Nato, the EU are stumbling blocks.

[Romans] never made any improvements on the cavalry. And amazingly, when you read the sources, they couldn't make it because stirrups were not known in Europe. For hundreds of years, the Romans couldn't make a cavalry which proved to be extremely effective.

The sanctions and travel restrictions would have to be far more comprehensive to be truly painful for [Vladimir] Putin and his inner circle. And the new middle class should also feel the effects of what he is doing. For instance, we should ask those who wish to enter the EU whether they have visited illegally occupied Crimea in the last few months and, if the answer is "yes," deny them a visa.

The slightest sign of stability is used by local authoritarian leaders to bargain for the sympathies of Western countries that are, for the sake of a balanced relationship, bound to turn a blind eye to obvious, blatant violations of human rights and the deconstruction of democratic institutions in these countries.

I think we have very steady records of President Putin, who inherited the country with democratic values.

Chess helps you to concentrate, improve your logic. It teaches you to play by the rules and take responsibility for your actions, how to problem solve in an uncertain environment.