when we were blunder La Bourdonnais vs McDonnell, 1834   (C44) King's Pawn Game, 58 moves, 1/2-1/2 30...Kd7 La Bourdonnais vs McDonnell, 1834   (C53) Giuoco Piano, 31 moves, 1-0 29.Kxe2 McDonnell vs La Bourdonnais, 1834   (C33) King's Gambit Accepted, 30 moves, 0-1 Rg4 - Rg4 La Bourdonnais vs McDonnell, 1834  (D20) Queen's Gambit Accepted, 36 moves, 1-0 29.Nf6+ Kf7 Staunton vs Anderssen, 1851  (C54) Giuoco Piano, 30 moves, 1-0 8...a6 11...Qe7 16...a5 Morphy vs Anderssen, 1858  (C38) King's Gambit Accepted, 19 moves, 1-0 Nf6 - Nxe4 Morphy vs Anderssen, 1858  (C38) King's Gambit Accepted, 19 moves, 1-0 22.Bd3 and more... Steinitz vs Anderssen, 1866  (C37) King's Gambit Accepted, 24 moves, 0-1 41.Kh2 Steinitz vs Zukertort, 1886  (C45) Scotch Game, 46 moves, 0-1 Combination goes wrong after 20.Qh7? Zukertort vs Steinitz, 1886  (C49) Four Knights, 42 moves, 0-1 20...Qxf2 Gunsberg vs Steinitz, 1891  (C52) Evans Gambit, 21 moves, 1-0 24,Bg4 Steinitz vs Gunsberg, 1890  (D20) Queen's Gambit Accepted, 28 moves, 0-1 8...Nc6 Steinitz vs Chigorin, 1889  (D02) Queen's Pawn Game, 22 moves, 1-0 18.h3 Chigorin vs Steinitz, 1889  (C52) Evans Gambit, 26 moves, 0-1 18.c3 - 19.Kd2 - 21.Bg2 Steinitz vs Chigorin, 1892  (C58) Two Knights, 24 moves, 0-1 32. Bb4 Chigorin vs Steinitz, 1892  (C34) King's Gambit Accepted, 32 moves, 0-1 41... Qd7 Lasker vs Steinitz, 1894  (C62) Ruy Lopez, Old Steinitz Defense, 46 moves, 1-0 49...Rdd8 50.Rf2 / 51...Bh7 Lasker vs Steinitz, 1896  (C50) Giuoco Piano, 58 moves, 1-0 25...Rxe4, 28...Qxc2, 36...a4, 41...Bb2 Lasker vs Steinitz, 1897  (C71) Ruy Lopez, 42 moves, 1-0 42.Rf1 Marshall vs Lasker, 1907   (D53) Queen's Gambit Declined, 43 moves, 0-1 19...Ne5 Lasker vs Marshall, 1907  (C11) French, 46 moves, 1-0 11...Bxh2+, 19...Kf8 Lasker vs Marshall, 1907  (C11) French, 21 moves, 1-0 29.Qg3 - 33.Bxe6 fxe6 (Qb1+!) Marshall vs Lasker, 1907  (D53) Queen's Gambit Declined, 37 moves, 0-1 40.a4 Tarrasch vs Lasker, 1908  (C66) Ruy Lopez, 41 moves, 0-1 54...Qc5 Schlechter vs Lasker, 1910   (C66) Ruy Lopez, 58 moves, 1-0 64...Kc7 Lasker vs Schlechter, 1910   (D11) Queen's Gambit Declined Slav, 71 moves, 1-0 44...Kf8 Capablanca vs Lasker, 1921   (D63) Queen's Gambit Declined, Orthodox Defense, 46 moves, 1-0 38.Qf2? Capablanca vs Alekhine, 1927  (D63) Queen's Gambit Declined, Orthodox Defense, 38 moves, 1/2-1/2 opening disaster Alekhine vs Bogoljubov, 1929  (D16) Queen's Gambit Declined Slav, 26 moves, 1-0 40.Re6 / 70...Kg4 Alekhine vs Bogoljubov, 1929  (D51) Queen's Gambit Declined, 77 moves, 1-0 23.Qd2 Euwe vs Keres, 1948  (C74) Ruy Lopez, Modern Steinitz Defense, 25 moves, 0-1 57.Kc2 Bronstein vs Botvinnik, 1951  (B63) Sicilian, Richter-Rauzer Attack, 57 moves, 0-1 c5 - c5 Smyslov vs Botvinnik, 1958  (D98) Grunfeld, Russian, 24 moves, 1-0 29...Bxh2 / 40...f4 Spassky vs Fischer, 1972  (E56) Nimzo-Indian, 4.e3, Main line with 7...Nc6, 56 moves, 1-0 27.Qc2 Spassky vs Fischer, 1972  (E41) Nimzo-Indian, 27 moves, 0-1 the infamous 19...Nd7 Fischer vs Spassky, 1972  (A39) English, Symmetrical, Main line with d4, 37 moves, 1-0 39.Ra1 Korchnoi vs Karpov, 1978  (E47) Nimzo-Indian, 4.e3 O-O 5.Bd3, 39 moves, 0-1 34...f6? Karpov vs Korchnoi, 1981  (C67) Ruy Lopez, 57 moves, 1-0 31.Nb1 Karpov vs Kasparov, 1985  (D52) Queen's Gambit Declined, 32 moves, 0-1 22...Rcd8 Kasparov vs Karpov, 1985  (E21) Nimzo-Indian, Three Knights, 25 moves, 1-0 40. e5 Karpov vs Kasparov, 1985  (B84) Sicilian, Scheveningen, 42 moves, 0-1 35.Rc6 Karpov vs Kasparov, 1987  (D87) Grunfeld, Exchange, 50 moves, 0-1 the infamous 27...Qa5 Karpov vs Kasparov, 1990  (E92) King's Indian, 44 moves, 1-0 24..d5 25.cxd5 Bxd5 Karpov vs Kasparov, 1990  (E87) King's Indian, Samisch, Orthodox, 29 moves, 1-0 46.e4 Ke6 Kasparov vs Short, 1993  (E34) Nimzo-Indian, Classical, Noa Variation, 52 moves, 1-0 16...Bc6 - 18...Bxe7 Deep Blue vs Kasparov, 1997  (B17) Caro-Kann, Steinitz Variation, 19 moves, 1-0 41.Qg8 - 42...Bxf2 Kasimdzhanov vs Adams, 2004  (C91) Ruy Lopez, Closed, 44 moves, 1/2-1/2 57...f5? Kramnik vs Topalov, 2006   (E04) Catalan, Open, 5.Nf3, 75 moves, 1-0 31...Bxf8 32.Qg6 / 59.Ng5 Topalov vs Kramnik, 2006  (D18) Queen's Gambit Declined Slav, Dutch, 63 moves, 0-1 24...f6? Kramnik vs Topalov, 2006   (E10) Queen's Pawn Game, 43 moves, 1-0 34...Qe3 Deep Fritz vs Kramnik, 2006  (D20) Queen's Gambit Accepted, 35 moves, 1-0 120.f6 Rybka vs Zappa, 2007  (C92) Ruy Lopez, Closed, 180 moves, 0-1 33.Bd3 Kramnik vs Anand, 2008  (D49) Queen's Gambit Declined Semi-Slav, Meran, 41 moves, 0-1 29.Nxd4 - 33.Rxb7 Kramnik vs Anand, 2008  (D49) Queen's Gambit Declined Semi-Slav, Meran, 35 moves, 0-1 Topalov vs Anand, 2010  (D17) Queen's Gambit Declined Slav, 56 moves, 1-0 Anand vs Topalov, 2010  (E53) Nimzo-Indian, 4.e3, 83 moves, 1/2-1/2 16... Rxh1 Anand vs Gelfand, 2012  (D70) Neo-Grunfeld Defense, 17 moves, 1-0 28. Nf1 Anand vs Carlsen, 2013  (E25) Nimzo-Indian, Samisch, 28 moves, 0-1 58 games