7.O-O-O, 15...O-O-O Giri vs Nepomniachtchi, 2019  (B07) Pirc, 26 moves, 0-1 14.O-O-O, 16...O-O-O R Praggnanandhaa vs Bareev, 2019  (C01) French, Exchange, 51 moves, 0-1 7.O-O-O, 10...O-O-O E Diemer vs Portz, 1948  (D00) Queen's Pawn Game, 13 moves, 1-0 10...O-O-O, 13.O-O-O R Schulder vs S Boden, 1853  (C41) Philidor Defense, 15 moves, 0-1 8.O-O-O O-O-O Knude vs Paulisch, 1956  (D00) Queen's Pawn Game, 12 moves, 0-1 13...O-O-O, 14.O-O-O Tarrasch vs Rubinstein, 1912  (C50) Giuoco Piano, 63 moves, 1/2-1/2 10.O-O-O, 15...O-O-O Van Wely vs Filippov, 2004 (D43) Queen's Gambit Declined Semi-Slav, 63 moves, 1-0 11.O-O-O, 14...O-O-O Harikrishna vs Ivanchuk, 2004  (E43) Nimzo-Indian, Fischer Variation, 25 moves, 0-1 8.O-O-O, 15...O-O-O H Ni vs J Ye, 2004 (B48) Sicilian, Taimanov Variation, 45 moves, 1-0 12.O-O-O, 14...O-O-O V Malakhov vs Dominguez Perez, 2004 (D12) Queen's Gambit Declined Slav, 24 moves, 1/2-1/2 12.O-O-O, 14...O-O-O Dreev vs R Felgaer, 2004  (D12) Queen's Gambit Declined Slav, 33 moves, 1-0 13.O-O-O, 19...O-O-O A Sotsky vs Shirov, 2017  (D00) Queen's Pawn Game, 32 moves, 0-1 8.O-O-O, 11...O-O-O J L Watson vs B Bok, 2015  (A45) Queen's Pawn Game, 35 moves, 0-1 6.O-O-O, 24...O-O-O S Collins vs S Williams, 2004  (B00) Uncommon King's Pawn Opening, 39 moves, 1-0 8.O-O-O, 13...O-O-O A Esipenko vs R Praggnanandhaa, 2019  (B69) Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 11.Bxf6, 44 moves, 1-0 13...O-O-O, 18.O-O-O Nepomniachtchi vs V S Gujrathi, 2019  (C42) Petrov Defense, 37 moves, 1-0 12.O-O-O, 16...O-O-O Sakaev vs Dreev, 2004 (D43) Queen's Gambit Declined Semi-Slav, 21 moves, 1/2-1/2 10.O-O-O, 14...O-O-O Sakaev vs Dreev, 2004  (D43) Queen's Gambit Declined Semi-Slav, 61 moves, 1-0 9.O-O-O, 12...O-O-O Y Gonzalez Vidal vs Harikrishna, 2017  (C42) Petrov Defense, 36 moves, 1-0 13.O-O-O, 14...O-O-O K Ulanowski vs L Licznerski, 2017  (B17) Caro-Kann, Steinitz Variation, 65 moves, 0-1 13.O-O-O, 15...O-O-O Krasenkow vs V Akopian, 2004 (D45) Queen's Gambit Declined Semi-Slav, 49 moves, 1/2-1/2 11.O-O-O, 18...O-O-O Radjabov vs Adams, 2004  (C45) Scotch Game, 27 moves, 1/2-1/2 11...O-O-O, 15.O-O-O Adams vs Radjabov, 2004  (C40) King's Knight Opening, 44 moves, 1/2-1/2 11.O-O-O, 22...O-O-O I Salgado Lopez vs Jobava, 2017 (C10) French, 36 moves, 1-0 13.O-O-O, 17...O-O-O Fischer vs Najdorf, 1960  (B81) Sicilian, Scheveningen, Keres Attack, 59 moves, 1/2-1/2 12.O-O-O, 18...O-O-O Anand vs Vachier-Lagrave, 2018  (B96) Sicilian, Najdorf, 37 moves, 1/2-1/2 13....O-O-O, 16.O-O-O I Popov vs Kovalenko, 2015  (C01) French, Exchange, 93 moves, 1-0 14...O-O-O 15.O-O-O E Zhao vs K McDonald, 2016  (A80) Dutch, 42 moves, 0-1 10.O-O-O, 12...O-O-O Wojtaszek vs Onischuk, 2017 (D35) Queen's Gambit Declined, 52 moves, 1/2-1/2 18.O-O-O O-O-O S Maze vs U Weisbuch, 2016 (A45) Queen's Pawn Game, 40 moves, 1/2-1/2 11.O-O-O O-O-O D Andreikin vs M Matlakov, 2017 (A45) Queen's Pawn Game, 39 moves, 1/2-1/2 10.O-O-O O-O-O B Socko vs L Kritz, 2005 (C43) Petrov, Modern Attack, 51 moves, 1-0 11.O-O-O, 13...O-O-O Kasparov vs Topalov, 1999  (B07) Pirc, 44 moves, 1-0 11.O-O-O, 12...O-O-O V Byvshev vs Boleslavsky, 1956  (C11) French, 41 moves, 1-0 11...O-O-O, 12.O-O-O N Ushakova vs S Logashov, 2009 (C41) Philidor Defense, 12 moves, 1/2-1/2 18...O-O-O, 22.O-O-O M Peek vs A Greet, 2006  (E12) Queen's Indian, 43 moves, 1/2-1/2 6.O-O-O, 15...O-O-O Gulko vs Portisch, 1974  (C15) French, Winawer, 72 moves, 1-0 8.O-O-O, 16...O-O-O Suetin vs Gufeld, 1969  (B06) Robatsch, 87 moves, 1-0 13...O-O-O, 21.O-O-O R Mamedov vs S Lomasov, 2019  (C07) French, Tarrasch, 60 moves, 1-0 6...O-O-O, 13.O-O-O A Muzychuk vs X Zhao, 2016  (B00) Uncommon King's Pawn Opening, 30 moves, 1-0 17.O-O-O, 31...O-O-O V Artemiev vs Bologan, 2018  (A20) English, 46 moves, 1-0 12...O-O-O 13.O-O-O J Berry vs Burger, 1983 (C30) King's Gambit Declined, 36 moves, 1/2-1/2 11.O-O-O, 12...O-O-O A Kirillov vs S Godley, 2019  (B06) Robatsch, 27 moves, 0-1 18...O-O-O, 24.O-O-O G Antal vs S Mosna, 1996 (C29) Vienna Gambit, 46 moves, 1-0 C Aravindh vs Adams, 2019 (D35) Queen's Gambit Declined, 33 moves, 1/2-1/2 C Aravindh vs Adams, 2019 (D35) Queen's Gambit Declined, 47 moves, 1/2-1/2 A Gupta vs A Korobov, 2019 (D36) Queen's Gambit Declined, Exchange, Positional line, 6.Qc2, 37 moves, 1/2-1/2 S Lu vs Gelfand, 2019 (C46) Three Knights, 26 moves, 1/2-1/2 C Henriquez Villagra vs Duda, 2019 (C42) Petrov Defense, 33 moves, 1/2-1/2 Duda vs C Henriquez Villagra, 2019 (B69) Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 11.Bxf6, 34 moves, 1-0 Harikrishna vs V Fedoseev, 2019  (D35) Queen's Gambit Declined, 54 moves, 1-0 Y Yu vs Wei Yi, 2019 (B93) Sicilian, Najdorf, 6.f4, 33 moves, 1/2-1/2 13.O-O-O, 14...O-O-O Goryachkina vs W Ju, 2020  (D35) Queen's Gambit Declined, 45 moves, 1-0 15.O-O-O, 16...O-O-O Keymer vs Ganguly, 2020 (D36) Queen's Gambit Declined, Exchange, Positional line, 6.Qc2, 37 moves, 1/2-1/2 12.O-O-O O-O-O Smeets vs A Smirnov, 2020 (C10) French, 16 moves, 1/2-1/2 14...O-O-O, 15.O-O-O N Davies vs L Zilbermintz, 2012 (C41) Philidor Defense, 35 moves, 1/2-1/2 9...O-O-O 10.O-O-O Duda vs M Ragger, 2020 (C68) Ruy Lopez, Exchange, 30 moves, 1/2-1/2 57 games