White sacrifices a pawn in the opening in order to cramp black. A Nimzowitsch vs A Hakansson, 1922   (C02) French, Advance, 27 moves, 1-0 White plays soundly but passively, black's activity backfires Petrosian vs Spassky, 1966  (E63) King's Indian, Fianchetto, Panno Variation, 30 moves, 1-0 Not really a strategy, but the King attacks before endgame. Teichmann vs Allies, 1905  (C56) Two Knights, 35 moves, 1-0 White sacs the queen for a rook, bishop and passed pawn early. A Mikhalchishin vs D Pavasovic, 1999   (D45) Queen's Gambit Declined Semi-Slav, 30 moves, 1-0 4 games