Want to win? Learn defense.
Defence in chess means making moves that prevent an undesirable outcome like loss of material, attack against the king and checkmates. It can also mean making sure that the opponent doesn’t gain a strategic edge (dominating a key square, passed pawn etc.).
This chess masterclass by GM Boris Avrukh includes many illustrative examples. PGN files are made available for paid subscribers.
Full comprehensive Breyer repertoire for Black against the main line of Ruy Lopez.
