19 ... Bf8-c5+! 20 Kf2-g3 restrains advance g2-g4 of White pawn Kramnik vs Nunn, 1992  (E81) King's Indian, Samisch, 33 moves, 1-0 Nimzowitsch restrains Black kingside pawns from ever advancing A Nimzowitsch vs J Bernstein, 1923  (D37) Queen's Gambit Declined, 49 moves, 1-0 Black a5-pawn, e7-bishop restrain White q-side pawn majority B Alterman vs Karpov, 1995  (E15) Queen's Indian, 56 moves, 0-1 Aronian's 18 ... Bc5-d4! defends e5-square to prevent 19 e4-e5 Gelfand vs Aronian, 2008  (D11) Queen's Gambit Declined Slav, 30 moves, 0-1 26 e2-e4! prevents ... e5-e4, leaving Black with a bad bishop Capablanca vs A Brinckmann, 1929  (D17) Queen's Gambit Declined Slav, 29 moves, 1-0 5 games