Clue #1 I A Horowitz vs Pilnik, 1945 (C82) Ruy Lopez, Open, 40 moves, 1/2-1/2 Clue #2 Pillsbury vs von Popiel, 1900  (B18) Caro-Kann, Classical, 74 moves, 1-0 Clue #3 Nepomniachtchi vs D Andreikin, 2012  (C65) Ruy Lopez, Berlin Defense, 40 moves, 0-1 Clue #4 Reti vs Bogoljubov, 1924   (A13) English, 25 moves, 1-0 Clue #5 A Ushenina vs W Ju, 2012  (E86) King's Indian, Samisch, Orthodox, 7.Nge2 c6, 31 moves, 1-0 Clue #6 Carlsen vs Karjakin, 2016  (D05) Queen's Pawn Game, 52 moves, 0-1 Clue #7 J Wygrecki vs W Shipman, 1986 (C37) King's Gambit Accepted, 22 moves, 1/2-1/2 Clue #8 Novag vs Bobby, 1983  (C30) King's Gambit Declined, 46 moves, 1/2-1/2 Clue #9 R Comas Colon vs L Avalos, 2014 (A37) English, Symmetrical, 81 moves, 1-0 Clue #10 Tal vs Petrosian, 1974  (B08) Pirc, Classical, 23 moves, 1-0 Clue #11 R Antonio vs D Laylo, 2001 (B01) Scandinavian, 55 moves, 1-0 Clue #12 A Lehtinen vs J Sietio, 1996  (A04) Reti Opening, 47 moves, 1-0 Clue #13 Spielmann vs Salwe, 1912  (C48) Four Knights, 14 moves, 1/2-1/2 Clue #14 Capablanca vs Marshall, 1918  (C89) Ruy Lopez, Marshall, 36 moves, 1-0 Clue #15 Reshevsky vs Smyslov, 1953  (E41) Nimzo-Indian, 19 moves, 1/2-1/2 Clue #16 I Montoya Irigoyen vs I Cheparinov, 2001  (B95) Sicilian, Najdorf, 6...e6, 45 moves, 0-1 Clue #17 Fischer vs W Addison, 1970  (B01) Scandinavian, 24 moves, 1-0 Clue #18 C Hooker vs C McBride, 1974  (D20) Queen's Gambit Accepted, 10 moves, 0-1 Clue #19 K Burger vs Benko, 1969  (A56) Benoni Defense, 27 moves, 0-1 Clue #20 J Uznanski vs R Slawinski, 1992  (C39) King's Gambit Accepted, 23 moves, 1/2-1/2 Clue #21 Topalov vs Anand, 2010  (D86) Grunfeld, Exchange, 30 moves, 1-0 Clue #22 A Nimzowitsch vs Systemsson, 1927   (C00) French Defense, 24 moves, 1-0 Clue #23 T Hannibal vs D Harrington, 1979  (D32) Queen's Gambit Declined, Tarrasch, 28 moves, 0-1 Clue #24 Averbakh vs Korchnoi, 1965  (A49) King's Indian, Fianchetto without c4, 39 moves, 0-1 Clue #25 P Simonsen vs T Skovgaard, 2001  (E30) Nimzo-Indian, Leningrad, 59 moves, 1/2-1/2 Clue #26 Timman vs Kasparov, 1985  (C93) Ruy Lopez, Closed, Smyslov Defense, 41 moves, 1-0 Clue #27 Alekhine vs Ecole Polytechnique Paris, 1925  (D05) Queen's Pawn Game, 23 moves, 0-1 Clue #28 J S Rubin vs E Winter, 1974  (A06) Reti Opening, 14 moves, 0-1 Clue #29 Onischuk vs Jakovenko, 2011 (D45) Queen's Gambit Declined Semi-Slav, 34 moves, 1/2-1/2 Clue #30 Petrosian vs Bronstein, 1956  (E66) King's Indian, Fianchetto, Yugoslav Panno, 36 moves, 0-1 Clue #31 Korchnoi vs Pirc, 1965 (A53) Old Indian, 23 moves, 1-0 Clue #32 N Povah vs A Compton, 2015 (D05) Queen's Pawn Game, 47 moves, 1-0 Clue #33 D Gurevich vs R Forster, 1997 (E71) King's Indian, Makagonov System (5.h3), 15 moves, 1/2-1/2 Clue #34 Tal vs P Grave, 1965  (B32) Sicilian, 37 moves, 1-0 Clue #35 D King vs G Hertneck, 1991 (A00) Uncommon Opening, 21 moves, 1-0 Solution 336 A Bachmann vs Rudiger, 1985 (C32) King's Gambit Declined, Falkbeer Counter Gambit, 17 moves, 0-1 Solution #37 J Hampton vs B Wall, 1986  (B00) Uncommon King's Pawn Opening, 22 moves, 1-0 Solution #38 J Mortimer vs M Marquez Sterling, 1900  (C44) King's Pawn Game, 58 moves, 0-1 Solution #39 E Paoli vs G Sansonetti, 1989 (C14) French, Classical, 45 moves, 0-1 Clue #40 D Hoefler vs Adianto, 1999 (B27) Sicilian, 57 moves, 0-1 Clue #41 A Cerin vs Bagirov, 1988 (A09) Reti Opening, 41 moves, 0-1 Clue #42 Huebner vs Short, 1988  (D37) Queen's Gambit Declined, 23 moves, 0-1 Clue #43 Y Cho vs A Ayiku, 2014 (B52) Sicilian, Canal-Sokolsky (Rossolimo) Attack, 79 moves, 1-0 Clue #44 Denker vs Botvinnik, 1945  (D44) Queen's Gambit Declined Semi-Slav, 25 moves, 0-1 Clue #45 Gligoric vs Fischer, 1970  (A77) Benoni, Classical, 9...Re8, 10.Nd2, 35 moves, 0-1 Clue #46 K Kelley vs I Nikolayev, 2009 (D09) Queen's Gambit Declined, Albin Counter Gambit, 5.g3, 28 moves, 0-1 Clue #47 J Chiarelli vs D Jennings, 1979  (C33) King's Gambit Accepted, 22 moves, 1-0 Clue #48 M Mrdja vs M Ashley, 1998 (B62) Sicilian, Richter-Rauzer, 41 moves, 1/2-1/2 Clue #49 Krasenkow vs Nakamura, 2007  (A14) English, 28 moves, 0-1 Clue #50 Anderssen vs Kieseritzky, 1851   (C33) King's Gambit Accepted, 23 moves, 1-0 Clue #51 A Fox vs K Rusev, 2003 (A07) King's Indian Attack, 33 moves, 0-1 Clue #52 T Montoyo vs P Bersamina, 2011 (A01) Nimzovich-Larsen Attack, 67 moves, 0-1 Clue #53 Kasparov vs Smyslov, 1981  (C70) Ruy Lopez, 39 moves, 1-0 Clue #54 Ehlvest vs Kamsky, 2010  (B06) Robatsch, 56 moves, 1-0 Clue #55 Harper vs Blackburne, 1868   (C55) Two Knights Defense, 20 moves, 0-1 Clue #56 N Gaprindashvili vs A Aleksandrov, 1990 (D38) Queen's Gambit Declined, Ragozin Variation, 33 moves, 0-1 Clue #57 Lasker vs Tarrasch, 1908  (C99) Ruy Lopez, Closed, Chigorin, 12...cd, 44 moves, 0-1 Clue #58 Spirit of Adventure vs Donald Duck, 1959  (D00) Queen's Pawn Game, 61 moves, 1-0 Clue #59 M Cichy vs R Fiala, 1995 (B78) Sicilian, Dragon, Yugoslav Attack, 10.castle long, 23 moves, 0-1 Clue #60 Ding Liren vs Aronian, 2013  (D45) Queen's Gambit Declined Semi-Slav, 46 moves, 1-0 Clue #61 S Polgar vs V Spasov, 1993 (E67) King's Indian, Fianchetto, 48 moves, 0-1 Clue #62 Labelle vs J Hardinge, 1969 (D05) Queen's Pawn Game, 39 moves, 1-0 Clue #63 Ikarus vs Comet, 2000 (E39) Nimzo-Indian, Classical, Pirc Variation, 54 moves, 1/2-1/2 Clue #64 NN vs Santa Claus, 1908   (C42) Petrov Defense, 69 moves, 0-1 64 games