32 ... Qc7-a7! tempo on undefended White a7-queen breaks pin Korchnoi vs Fischer, 1962  (E62) King's Indian, Fianchetto, 44 moves, 0-1 24 Be6-c4! tempo on undefended a6-bishop to escape king fork Tal vs H Hecht, 1962  (E12) Queen's Indian, 49 moves, 1-0 27 Rh4xh6! g7xRh6?? escape from c-file pin with 28 Qc2-g6+ Shirov vs Svidler, 2008  (D16) Queen's Gambit Declined Slav, 43 moves, 1-0 3 games