Discovered Attack. In this lesson, each problem is designed to assist in spotting and visualizing how to exploit discovered attacks…that is to say, by moving pieces or advancing pawns then opens a new line of attack upon opposing pieces and pawns back for strategic opportunities and the tactical purposes. The problems cover a range of strategical goals utilizing a range of tactical moves and pawn advances alone and in combinations including forks and fork checks, pins, double attacks, and so on. The solution [and any variation(s)] for each problem with annotation and commentary follow the problem’s board.