Game 1 | Caruana vs. Carlsen | 2018 World Chess Championship

From a channel Lumen includes in full: IM John Bartholomew teaches chess strategy and openings by narrating his own games and model positions, explaining his thought process move by move; widely used as a self-study course.

A 25-minute video from John Bartholomew's catalogue; the title names its topic.

Video by John Bartholomew, played through YouTube's embedded player.