Magnus Carlsen recently launched an Official YouTube Channel, following his successful challenge for the World Championship.
It is good to see that he is starting with the basics. His first training video concerns the three things that players should be thinking about in the opening phase of the game, namely, development, king safety and central square control. He explains these eloquently in the video below.
This is all pretty standard training stuff, which any chess coach teaching junior beginners will cover. But it is good to see short training videos like these online, easily accessible to all. Perhaps more non-chess players will be encouraged by these short videos to give chess a try.
Despite how simple the advice is on the video, it is amazing how many experienced players get into trouble by not following this advice. For example, many games see players never castling, or launching attacks before completing development, or attacking on the side and neglecting the centre. Sometimes the simplest advice is the most difficult to follow, for amateur and master alike.