All experiments that are related to the games when you have humans versus machines in the games - whether it's chess or "Go" or any other game - machines will prevail not because they can solve the game. Chess is mathematically unsolvable. But at the end of the day, the machine doesn't have to solve the game. The machine has to win the game. And to win the game, it just has to make fewer mistakes than humans. Which is not that difficult since humans are humans and vulnerable, and we don't have the same steady hand as the computer.

Capablanca possessed an amazing ability to quickly see into a position and intuitively grasp its main features. His style, one of the purest, most crystal-clear in the entire history of chess, astonishes one with his logic.

Alexei Navalny, the opposition politician who has led anti-corruption protests, had a blog about a credit line to a company owned by Vladimir Putin's son-in-law, $1.75 billion from Russian state funds; this is one transaction. Putin controls more money directly and indirectly than any individual in human history.

In general there is something puzzling about the fact that the most renowned figures in chess - Morphy, Pillsbury, Capablanca and Fischer - were born in America.

I don't really like discussions about a supposed Russian national character.

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.

We are living in a new ice age, and we need to apply the recipes of the Cold War to the Kremlin. That means isolation instead of offers of negotiation. And Ukraine should have been supplied with weapons long ago.