From Ukraine to Syria, he [Vladimir Putin] is behaving like the world's new general and celebrating victories, while the American president sits on the sidelines and Europe sleeps. The West's behavior toward Putin is political and moral capitulation.

Botvinnik tried to take the mystery out of Chess, always relating it to situations in ordinary life. He used to call chess a typical inexact problem similar to those which people are always having to solve in everyday life.

Furthermore, the situation in the North Caucasus is rather unstable. Mutual relations and the cooperation between [Vladimir] Putin and [Ramzan] Kadyrov, the high price that has been paid to buy the loyalty of the local elite through an enormous tribute of multibillion[-ruble] investments, all this cannot be an arrangement for good.

Revenge for a terror attack is ideal for Putin's model. His propaganda machine will be filled with scenes of crash victims if [Vladimir] Putin sees the need for a larger war to stoke his domestic support again as the Russian economy teeters.

The loss of my childhood was the price for becoming the youngest world champion in history. When you have to fight every day from a young age, your soul can be contaminated. I lost my childhood. I never really had it. Today I have to be careful not to become cruel, because I became a soldier too early.

In chess the rules are fixed and the outcome is unpredictable, whereas in Putin's Russia the rules are unpredictable and the outcome is fixed.

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.