White resigned. Corresponding Squares Corresponding squares are squares of reciprocal zugzwang. We may speak of corresponding squares for kings, for kings with pawns, and with other material, we may speak of correspondence between any pairs of pieces. The most commonly seen cases of corresponding squares are: the opposition, mined squares, and triangulation. Opposition Opposition is the state of two kings standing on the same file with one square separating them close opposition; three or five squares between is called distant opposition ; the opposition may be vertical, horizontal, or diagonal. To get the opposition means to achieve this standing of the kings one square apart with the opponent to move that is, to place him in zugzwang ; to fall into opposition means, conversely, to fall into zugzwang oneself.
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Biography[ edit ] Dvoretsky was born in Moscow in He learnt chess when he was around 5 or 6 years old. However, he started to study chess seriously and participate in tournaments only when he was in the fifth grade. Before that he had a different interest — mathematics.
One day his math teacher was changed, and a boring one was the replacement. He lost his interest in math and moved towards chess. He was around years old when he enrolled in a chess club in Moscow. He was awarded the International Master title in , and for a time he was widely regarded as the strongest IM in the world. This was due to a number of excellent results: he was Moscow Champion in , finished equal fifth in a strong Soviet Championship in , and won the Wijk aan Zee Masters tournament of by a clear point and a half.
Along with another creditable finish at the USSR Championship of , the results were an indication that he was already of grandmaster strength. However, for personal reasons he opted not to remain an active player and instead followed his urge to become a chess trainer. This was something he had tried out and enjoyed while studying at Moscow University , and he quickly gained a reputation for transforming serious, hard-working Elo players into grandmasters.
Almost all players in top currently have received training from him. Equally noteworthy has been his long-time collaboration with fellow Muscovite Artur Yusupov.
Dvoretsky wrote a series of chess training books. The books are sometimes co-authored by star pupil Yusupov and many contain contributions from a host of other grandmasters. The fourth edition of this book was published in He died on September 26, , at the age of
There are many top notch authors and teachers, but one of the most famous is the Russian Mark Dvoretsky. For some players, this might seem like braggadocio, but Dvoretsky is actually being quite modest, since in , FIDE had him ranked as high as world no. After coaching and helping develop players such as Artur Yussupov and Sergey Dolmatov, both of whom qualified for the World Championship Candidates matches, his success in his method was no longer in doubt, and players around the world could only wish to have access to it. The book came out in English in , and was a smash hit as far as endgame manuals go, but more remarkably, a digital version especially adapted to ChessBase software was developed and released the very same year. It exploited many unique aspects of the format, that made the software version superior in more ways than one.