A grandmaster must memorize thousands of chess duels in his head, as these are for him what words of the mother tongue are to the ordinary people and what notes are to a musician.

Moscow is simply unwilling to recognize the right of self-determination of nations.

[Vladimir] Putin's Russia is only indirectly concerned with the conflict between Armenia and Azerbaijan as a means of maintaining its sphere of influence. I doubt that Russia will meddle. Moreover, I'm quite sure that Ilham Aliyev won't decide to carry out any serious action - it's not in his interest. He's learned his lesson very well - threaten to take action but never act on such words.

To my surprise I found that when other top players in the precomputer age (before 1995, roughly) wrote about games in magazines and newspaper columns, they often made more mistakes in their annotations than the players had made at the board.

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.

We have again a strange gap. We have the big scientific discoveries around the second, third century BC. Then we have an invention of the so-called Arab system, the positional system of counting with zero dated to the eighth or ninth century.

The growth of violent extremism is partly a consequence of how the developed world has become complacent and defensive about its own greatness and ambition.