4The Dutch chess opening is renowned as a fighting weapon against 1.d4, as 1...f5 immediately sets up an unbalanced struggle. Then Black's kingside fianchetto, which defines the Leningrad Dutch, allows pawn-storming play in similar style to the King's Indian Defense. Mihail Marin is the ideal author to explain both the strategic ideas and the latest theory. Leningrad Dutch covers lines where White also fianchettoes the king's bishop - these lines are the critical test of the Leningrad. The companion volume, Dutch Sidelines, completes Black's Dutch repertoire.