Positional Decision Making in Chess - Boris GelfandECF Book of the Year Paperback, 288 pages: 2015 Quality chess Publishing 'Positional Decision Making in Chess' offers a rare look into the mind of a top grandmaster. In his efforts to explain his way of thinking, Boris Gelfand focuses on such topics as the squeeze, space advantage, the transformation of pawn structures and the transformation of advantages. Based on examples from his own games and those of his hero, Akiba Rubinstein, Gelfand explains