13... c5! pawn sac for open c and a files. 14..Na5 Lautier vs Ivanchuk, 1991  (D91) Grunfeld, 5.Bg5, 25 moves, 0-1 19. e5! dxe5 20. f5! against fianchettoed king bishop J Penrose vs Tal, 1960  (A65) Benoni, 6.e4, 39 moves, 1-0 15...e4!? fxe4, 16..f4 push 20...Be5 blockade Gheorghiu vs Kasparov, 1988  (E88) King's Indian, Samisch, Orthodox, 7.d5 c6, 36 moves, 0-1 31...g5! for piece mobility Karpov vs Kasparov, 1985  (B84) Sicilian, Scheveningen, 42 moves, 0-1 12.e5 followed by 13.f5! Botvinnik vs A Pomar, 1962  (A07) King's Indian Attack, 30 moves, 1-0 24.f5 Ljubojevic vs Miles, 1986  (A10) English, 33 moves, 1-0 8...d5 Straßenbahn-Gambit Karpov vs Kasparov, 1985  (B44) Sicilian, 40 moves, 0-1 13.Ba3 sacs Pe5 4 piis-play Fischer vs Larsen, 1971  (C19) French, Winawer, Advance, 41 moves, 1-0 14...b5! 15.Rd6 N Grandelius vs R Kurayan, 2013  (B78) Sicilian, Dragon, Yugoslav Attack, 10.castle long, 38 moves, 0-1 14. e6!! Svidler vs S Volkov, 2003  (C02) French, Advance, 54 moves, 1-0 7.e6!? J Barendregt vs Botvinnik, 1966  (B10) Caro-Kann, 41 moves, 1-0 27.d5! V Makogonov vs Botvinnik, 1940  (A93) Dutch, Stonewall, Botvinnik Variation, 44 moves, 1-0 11...Nxd4 Sadvakasov vs J Rohl, 2003 (C18) French, Winawer, 32 moves, 1-0 16.Rd1! V Gunina vs Q Huang, 2015  (D17) Queen's Gambit Declined Slav, 52 moves, 1-0 16.f5! exf5 17.exd5 Kramnik vs Topalov, 1999  (D15) Queen's Gambit Declined Slav, 40 moves, 1-0 7.0-0 (Nxc3 8.bc3 Bxc3 9.Rb1) - [Ba5 out of play] Balashov vs Romanishin, 1978  (E12) Queen's Indian, 28 moves, 1-0 2 pawns to trap the Queen Keres vs Spassky, 1965  (E43) Nimzo-Indian, Fischer Variation, 25 moves, 1-0 Fingerslip Gambit (opening) Alekhine vs Flohr, 1936  (C15) French, Winawer, 57 moves, 1-0 ...d5!! frees Be7 for ...Bc5+ J Polgar vs Kasparov, 2002  (B33) Sicilian, 45 moves, 0-1 G Timmerman vs Andersson, 1994  (B81) Sicilian, Scheveningen, Keres Attack, 49 moves, 0-1 12. Nc3 Qxe5 A Volokitin vs Fridman, 2016  (B12) Caro-Kann Defense, 23 moves, 1-0 Positional Pawn Sac ..d5 Petrosian vs Smyslov, 1949  (B84) Sicilian, Scheveningen, 46 moves, 0-1 Positional Pawn Sac ..d5 A Bokuchava vs Tal, 1970  (B43) Sicilian, Kan, 5.Nc3, 28 moves, 0-1 A Hamza vs M Hotami, 2016 (A48) King's Indian, 54 moves, 1-0 QI-wPd5 G Sargissian vs Grischuk, 2008  (E15) Queen's Indian, 64 moves, 1-0 14. f5 gf5 15. ef5 Nf5 16. Rf1 Rapport vs Bluebaum, 2015  (C00) French Defense, 43 moves, 1-0 A Mikhalchishin vs Kasparov, 1981  (A31) English, Symmetrical, Benoni Formation, 38 moves, 0-1 27 games