The more reduced the material, the more important it is to correctly assess the potential of your own and the enemy pieces. This is particularly true in endgames with unbalanced material. On DVDs 9 and 10 of his endgame series Dr. Karsten Müller explored symmetrical material constellations with two pieces against two pieces, and this DVD begins with a discussion of asymmetrical material balances, including
•rook against bishop
•rook and knight against two bishops
•two rooks against rook and bishop
•queen and rook against queen and bishop
•rook and knight against bishop and knight
•rook against two bishops
These endgames allow one to study the important characteristics "coordination" and "harmony of the pieces" in detail and lead to interesting practical insights. For instance, Müller shows that rook and knight are markedly superior to bishop+knight whereas the two bishops cope much better. With the help of a large number of examples the internationally renowned endgame expert explains the pertinent winning motifs of the side with the rook, such as returning the exchange, opening lines for the rook and restricting the bishop. Another factor that is of great importance in converting one's advantage is the question when and when not to exchange.