The Soviet Union tried to sell a set of ideas, very left wing, and focus on so-called peace. Vladimir Putin doesn't care who helps him to push his agenda. He is equally comfortable with the politics of Nigel Farage and Corbyn in Britain, Le Pen and Jean-Luc Mélenchon in France. Whether far left or nationalist, he doesn't care, as long as they support chaos and destruction and the undermining of existing institutions.

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.

I would not draw definitive conclusions from that. If we look at South and North Korea, it is pretty hard to believe that we're dealing with the same people. Half of the people are forced to live in a concentration camp; the other have created one of the most dynamic economies in the world.

One does not succeed by sticking to convention.

For me, chess is a language, and if it's not my native tongue, it is one I learned via the immersion method at a young age.

I don't think that nature envisaged an insurmountable mechanism that would hinder any country from taking the path of democratic development.

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.