Strategy in practice: The runner

When it comes to strategy, one of the most important things that chess professionals understand much better than amateur players is the role of the bishop. Why do two bishops ("the bishop pair") complement each other so well that they become an important factor in the long run? How is being a long-range piece an essential hallmark of the bishop? Why do strong players regularly hide their bishop on its starting square? Questions like these are explored on this strategy video course.