One way to improve your results is to develop a specific opening repertoire and learn it thoroughly so as to be prepared for most eventualities. This might seem like common sense but it is a lesson which many amateurs neglect to observe. A new book by the prolific author Cyrus Lakdawala (Opening Repertoire 1 d4 with 2 c4, published by Everyman Chess) seeks to plug this lacuna in the chess aficionado’s arsenal of openings by providing an aggressive repertoire based on the solid 1 d4.