The best chess masters of every epoch have been closely linked with the values of the society in which they lived and worked. All the changes of a cultural, political, and psychological background are reflected in the style and ideas of their play.

Chess is mental torture.

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.

The stock market and the gridiron and the battlefield aren't as tidy as the chessboard, but in all of them, a single, simple rule holds true: make good decisions and you'll succeed; make bad ones and you'll fail.

Any experienced player knows how a change in the character of the play influences your psychological mood.

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 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.