Dvoretsky/Yusupov: Technique in ChessAnd the Rest Is Just a Matter of Technique Based upon Dvoretskys famous card files How often has this comment been appended to a game move or variation? As many players know, it really may not be all that easy to figure out what is meant by this familiar phrase. After the untimely passing of legendary instructor Mark Dvoretsky, Artur Yusupov was given access to Dvoretskys famous card files. With the core material based upon these files, the former top