Botvinnik also claimed he only ever played one blitz game, so he did mean this in a stronger sense. Though he may have been allowing for training games at tourn

Botvinnik also claimed he only ever played one blitz game, so he did mean this in a stronger sense. Though he may have been allowing for training games at tournament time controls. Incidentally, I'm familiar with the recommendation (actually I thought it was a maximum of 50 games in a year) but I can't find any source for it online. Does anyone have a source?