Mastering Chess DefenceAll chess players know that they need to study tactics, calculation, endgames, and openings, but when it comes to defense, far too many wait until they're under pressure. The truth is that more games are lost because of defensive mistakes than strategic ones. By improving your defense, you could do more for your win rate than perhaps any other area of chess study. Mastering Chess Defense by GM Johan Hellsten is the training program you need to be