I'm working on the lessons right now. I would like some further explanations. For example, in playing the first few moves of the "Ruy Lopez," I am very curious why protecting the hanging pawn is not the correct move (whereas castling is).
If black captures the hanging pawn, that is known as the Open Variation of the Ruy Lopez. I didn't want to get too deep into theory with this video as it was only supposed to outline opening ideas. White regains the pawn back due to his pressure on the e-file.
