When you start annotating blitz games, make sure you have enough question marks stored. It may even look like the author enjoys showing these mistakes, but it is something we have to live with – blitz is a competition that is decided not by the spark of a genius, but by an impulsive hand motion without involving brain cells (disclaimer: I am not a neurobiologist). Even the world's greatest players are prone to silly mistakes in this form of chess. Some of these players may still go through the entire distance undefeated, but only of sheer luck.
D. Andreikin – M. Carlsen