By Karsten Mueller, 275pp. Test and Improve Your Positional Intuition. As most chess instructors and players know, it is much more difficult to teach and learn strategic concepts than tactics. In this program, German grandmaster Dr. Karsten Mueller will help you develop your strategic chessplaying skills. Topics include: Good and Bad Bishops; Domination; Outposts; Undermining; Opening the Position; Blockade; Improving Piece Placement; Prophylaxis; A Second Front and The Principle of Two Weaknesses; Counterplay; Positional Exchange Sacrifice; Simplification; and Weak Color Complex along with exercises to test your knowledge.