Could it have been Grandmaster Chess Strategy by Jürgen Kaufeld & Guido Kern?
https://web.archive.org/web/20140708093410/http://www.chesscafe.com/text/review812.pdf
http://www.jeremysilman.com/shop/pc/Grandmaster-Chess-Strategy-77p3688.htm
Ulf Andersson
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Hi.
Some time ago I read a book where Andersson played a game with black, a Sicilian scheveningen. It was a match by correspondence chess, where he explained how in his early years he became obsessed with this type of games (correspondence chess) and thus improved his game. Somebody knows what book I'm talking about? Please, it would be of great help.