Women, by their nature, are not exceptional chess players: they are not great fighters.

Vladimir Putin is the wealthiest man on the planet, for sure. But this is different to the wealth of a Bill Gates or a Warren Buffett, a Carlos Slim or a Sergey Brin. They stay wealthy whether it is Barack Obama or Donald Trump in power. Putin's wealth depends on him staying in power. It is all about controlling the budget, the hard currency reserves and keeping under his thumb the oligarchs who cannot move their money without his permission. It is something close to a trillion dollars that he can control and move.

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 Greeks according to official history used letters for hundreds, for tens, and ones.It was extremely complicated. If you talk about Archimedes, you should use Greek letters.

Energy is connected to physical fitness. One of the reasons I stayed at the top so long is that I was tremendously fit. At 36, I was fitter than most opponents ten years younger.

With this mistake I deprived myself of the possibility to make a contribution to the treasury of chess art.

We've been saying Putin is a dictator for years who doesn't care about the law.