The Best Move is a collection of very hard chess problems based on actual grandmaster games. The reader is asked who has the advantage and why. Points are awarded not only for getting the answer right but for seeing deeply into the position. These problems are based primarily on the games of Grandmasters Hort and Grandmaster Jansa. These are not the typical “White to Play and Win” problems. Rather the reader is asked to decide who is better. These are very hard problems. Do not be surprised if you to not get any of them, or if you get them only by guessing.
Vlastimil Hort was a Czech-German chess Grandmaster. During the 1960s and 1970s he was one of the world's strongest players and reached the 1977–78 Candidates Tournament for the World Chess Championship, but never qualified for a competition for the actual title. Hort was a citizen of Czechoslovakia for the first part of his chess career. He achieved the Grandmaster title in 1965. He won a number of major international tournaments (Hastings 1967–68, Skopje 1969, etc.) and national championships (1970, 1971, 1972, 1975, and 1977). He gained recognition as one of the strongest non-Soviet players in the world, which led to him representing the "World" team in the great "USSR vs. Rest of the World" match of 1970, where he occupied fourth board and had an undefeated +1 score against the Soviet Grandmaster Lev Polugaevsky—in some respects his greatest result. He defected to the West in 1985, moving to West Germany and winning the national championship of his new homeland in 1987, 1989, and 1991.