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.

Tarrasch's 'dogmas' are not eternal truisms, but merely instructional material presented in an accessible and witty form, those necessary rudiments from which one can begin to grasp the secrets of chess.

There are fixed rules in chess, and no one knows how the game will end.

With some reservation, it can be said that certain democratic elements are present in Georgia as well; but it is very clear that the government has to pronounce its explicit wish to resign before something is going to happen. On the western front, only Belarus is an exception.

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 only successor to President Putin is President Putin himself and we could of course dream about President Putin stepping down voluntarily and picking out successor which would be probably as bad as him.

Vladimir Putin has this animalistic instinct of all dictators: He smells weakness. To quote Winston Churchill's definition of appeasement: "An appeaser is one who feeds a crocodile, hoping it will eat him last."