Chess openings starting with S
608 named lines, from Saragossa Opening to St. George Defense. Back to the list of chess openings A–Z.
Saragossa Opening 1 line
Scotch Game 53 lines
- C44 Scotch Game 2…Nc6 3. d4 3 moves
- C44 Scotch Game 3. d4 exd4 3 moves
- C45 Scotch Game 3…exd4 4. Nxd4 4 moves
- C45 Scotch Game 5…Bb4+ 6. Bd2 6 moves
- C45 Alekhine Gambit 5 moves
- C44 Benima Defense 4 moves
- C45 Blumenfeld Attack 6 moves
- C45 Braune Variation 5 moves
- C45 Classical Variation 4 moves
- C45 Classical Variation, Blackburne Attack 7 moves
- C45 Classical Variation, Intermezzo Variation 5 moves
- C45 Classical Variation, Millennium Variation 6 moves
- C44 Cochrane Variation 7 moves
- C44 Cochrane-Shumov Defense 9 moves
- C45 Fraser Variation 5 moves
- C45 Ghulam-Kassim Variation 6 moves
- C45 Gottschall Variation 12 moves
- C44 Göring Gambit 4 moves
- C44 Göring Gambit, Bardeleben Variation 6 moves
- C44 Göring Gambit, Double Pawn Sacrifice 5 moves
- C44 Göring Gambit, Main Line 5 moves
- C44 Hanneken Variation 9 moves
- C44 Haxo Gambit 4 moves
- C45 Horwitz Attack 5 moves
- C45 Horwitz Attack, Blackburne Variation 9 moves
- C44 Lolli Variation 3. d4 Nxd4 3 moves
- C44 Lolli Variation 4…exd4 5. Qxd4 5 moves
- C45 Malaniuk Variation 4 moves
- C45 Meitner Variation 7 moves
- C45 Mieses Variation 6 moves
- C45 Modern Defense 5 moves
- C44 Napoleon Gambit 5 moves
- C45 Paulsen Attack 7 moves
- C45 Paulsen Variation 5 moves
- C45 Paulsen, Gunsberg Defense 7 moves
- C45 Potter Variation 5 moves
- C44 Relfsson Gambit 4 moves
- C45 Romanishin Variation 5 moves
- C45 Rosenthal Variation 9 moves
- C45 Schmidt Variation 4 moves
- C44 Scotch Gambit 4 moves
- C44 Scotch Gambit, Advance Variation 5 moves
- C44 Scotch Gambit, Cochrane-Anderssen Variation 6 moves
- C44 Scotch Gambit, Dubois Réti Defense 4 moves
- C44 Scotch Gambit, Göring Gambit Declined 4 moves
- C44 Scotch Gambit, Kingside Variation 5 moves
- C44 Scotch Gambit, London Defense 4 moves
- C44 Scotch Gambit, Sarratt Variation 5 moves
- C44 Sea-Cadet Mate 10 moves
- C45 Steinitz Variation 4. Nxd4 Qh4 4 moves
- C45 Steinitz Variation 4…Qh4 5. Nc3 5 moves
- C45 Tartakower Variation 6 moves
- C44 Vitzthum Attack 6 moves
Semi-Slav Defense 68 lines
- D43 Semi-Slav Defense 4 moves
- D45 Accelerated Meran Variation 5 moves
- D31 Accelerated Move Order 3 moves
- D43 Anti-Moscow Gambit 6 moves
- D31 Anti-Noteboom, Stonewall Variation, Portisch Gambit 5 moves
- D46 Bogoljubow Variation 6 moves
- D44 Botvinnik Variation 5…dxc4 6. e4 6 moves
- D44 Botvinnik Variation 8…g5 9. Nxg5 9 moves
- D44 Botvinnik Variation, Alatortsev System 9 moves
- D44 Botvinnik Variation, Ekstrom Variation 10 moves
- D44 Botvinnik Variation, Lilienthal Variation 11 moves
- D44 Botvinnik Variation, Szabo Variation 11 moves
- D46 Chigorin Defense 6. Bd3 Bd6 6 moves
- D46 Chigorin Defense 6…Bd6 7. Qc2 7 moves
- D46 Chigorin Defense 7…O-O 8. Bd3 8 moves
- D46 Chigorin Defense 7…Bb7 8. Bd3 8 moves
- D46 Chigorin Defense 8…Re8 9. Bd3 9 moves
- D46 Chigorin Defense 8…Qe7 9. Bd3 9 moves
- D46 Chigorin Defense 9…O-O 10. Qc2 10 moves
- D46 Chigorin Defense 10…O-O 11. Qc2 11 moves
- D31 Gunderam Gambit 5 moves
- D43 Hastings Variation 7 moves
- D45 Main Line 4…e6 5. Nf3 5 moves
- D46 Main Line 5…Nbd7 6. Bd3 6 moves
- D46 Main Line 9…O-O 10. Bb2 10 moves
- D31 Marshall Gambit 4 moves
- D31 Marshall Gambit, Forgotten Variation 6 moves
- D31 Marshall Gambit, Main Line 6 moves
- D31 Marshall Gambit, Tolush Variation 9 moves
- D47 Meran Variation 7. Bxc4 b5 7 moves
- D48 Meran Variation 8. Bd3 a6 8 moves
- D48 Meran Variation 9. e4 c5 9 moves
- D49 Meran Variation, Blumenfeld Variation 11 moves
- D47 Meran Variation, Lundin Variation 8 moves
- D48 Meran Variation, Old Variation 10 moves
- D48 Meran Variation, Pirc Variation 9 moves
- D49 Meran Variation, Rabinovich Variation 11 moves
- D49 Meran Variation, Rellstab Attack 15 moves
- D48 Meran Variation, Reynolds' Variation 10 moves
- D49 Meran Variation, Sozin Variation 11. Nxb5 Nxe5 11 moves
- D49 Meran Variation, Sozin Variation 12…axb5 13. O-O 13 moves
- D49 Meran Variation, Stahlberg Variation 13 moves
- D47 Meran Variation, Wade Variation 8 moves
- D47 Meran Variation, Wade Variation, Kaidanov Gambit 13 moves
- D47 Meran Variation, Wade Variation, Larsen Variation 11 moves
- D43 Moscow Variation 6 moves
- D45 Normal Variation 5. Nf3 Nbd7 5 moves
- D45 Normal Variation 7. d4 Nbd7 7 moves
- D45 Normal Variation 7…O-O 8. Be2 8 moves
- D31 Noteboom Variation 4 moves
- D31 Noteboom Variation, Abrahams Variation 8 moves
- D31 Noteboom Variation, Anti-Noteboom Gambit 5 moves
- D31 Noteboom Variation, Anti-Noteboom Variation 5 moves
- D31 Noteboom Variation, Anti-Noteboom Variation, Belyavsky Line 5 moves
- D30 Quiet Variation 4…e6 5. Nbd2 5 moves
- D30 Quiet Variation 5. Nbd2 Nbd7 5 moves
- D46 Romih Variation 6 moves
- D45 Rubinstein System 6 moves
- D47 Semi-Meran Variation 7 moves
- D45 Stoltz Variation 5…Nbd7 6. Qc2 6 moves
- D45 Stoltz Variation 6…b6 7. b3 7 moves
- D45 Stoltz Variation 7. b3 Bb7 7 moves
- D45 Stoltz Variation 6…Bd6 7. b3 7 moves
- D45 Stoltz Variation 7…O-O 8. Bb2 8 moves
- D45 Stoltz Variation, Center Variation 7 moves
- D45 Stoltz Variation, Center Variation, Mikhalchishin Line 10 moves
- D45 Stoltz Variation, Shabalov Attack 7 moves
- D45 Stonewall Defense 6 moves
Semi-Slav Defense Accepted 1 line
Sicilian Defense 380 lines
- B20 Sicilian Defense 1. e4 c5 1 move
- B27 Sicilian Defense 1…c5 2. Nf3 2 moves
- B50 Sicilian Defense 2…d6 3. d4 3 moves
- B50 Sicilian Defense 3. d4 cxd4 3 moves
- B32 Accelerated Dragon 4 moves
- B34 Accelerated Dragon, Exchange Variation 5 moves
- B36 Accelerated Dragon, Maróczy Bind 4…g6 5. c4 5 moves
- B37 Accelerated Dragon, Maróczy Bind 5. c4 Bg7 5 moves
- B38 Accelerated Dragon, Maróczy Bind 5…Bg7 6. Be3 6 moves
- B39 Accelerated Dragon, Maróczy Bind, Breyer Variation 7 moves
- B36 Accelerated Dragon, Maróczy Bind, Gurgenidze Variation 7 moves
- B35 Accelerated Dragon, Modern Bc4 Variation 7 moves
- B34 Accelerated Dragon, Modern Variation 5 moves
- B37 Accelerated Dragon, Simagin Variation 7 moves
- B27 Acton Extension 3 moves
- B22 Alapin Variation 2 moves
- B22 Alapin Variation, Anti-Alapin Gambit 3 moves
- B22 Alapin Variation, Barmen Defense 3 moves
- B22 Alapin Variation, Barmen Defense, Central Exchange 6 moves
- B22 Alapin Variation, Barmen Defense, Endgame Variation 9 moves
- B22 Alapin Variation, Barmen Defense, Milner-Barry Attack 8 moves
- B22 Alapin Variation, Barmen Defense, Modern Line 5 moves
- B40 Alapin Variation, Sherzer Variation 5 moves
- B22 Alapin Variation, Smith-Morra Declined 4 moves
- B22 Alapin Variation, Stoltz Attack 6 moves
- B22 Alapin Variation, Stoltz Attack, Ivanchuk Line 8 moves
- B20 Amazon Attack 2 moves
- B20 Big Clamp Formation 4 moves
- B58 Boleslavsky Variation 6. Be2 e5 6 moves
- B59 Boleslavsky Variation 6…e5 7. Nb3 7 moves
- B58 Boleslavsky Variation, Louma Variation 7 moves
- B20 Bowdler Attack 2 moves
- B20 Brick Variation 2 moves
- B27 Brussels Gambit 2 moves
- B27 Bücker Variation 2 moves
- B53 Chekhover Variation 4 moves
- B53 Chekhover Variation, Zaitsev Defense 5 moves
- B56 Classical Variation 5. Nc3 Nc6 5 moves
- B58 Classical Variation 5…Nc6 6. Be2 6 moves
- B57 Classical Variation, Anti-Sozin Variation 6 moves
- B58 Classical Variation, Dragon Transfer 7 moves
- B56 Classical Variation, Fianchetto Variation 6 moves
- B57 Classical Variation, Sozin Attack 6 moves
- B23 Closed 1…c5 2. Nc3 2 moves
- B23 Closed 2. Nc3 e6 2 moves
- B23 Closed 2…e6 3. g3 3 moves
- B24 Closed 3. g3 g6 3 moves
- B24 Closed 4. Bg2 Bg7 4 moves
- B25 Closed 5. d3 d6 5 moves
- B25 Closed 5…d6 6. f4 6 moves
- B26 Closed 5…d6 6. Be3 6 moves
- B30 Closed, Anti-Sveshnikov Variation 3 moves
- B30 Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik Line 6 moves
- B30 Closed, Anti-Sveshnikov Variation, with d6 5 moves
- B30 Closed, Anti-Sveshnikov Variation, with Nf6 5 moves
- B25 Closed, Botvinnik Defense, Edge Variation 7 moves
- B25 Closed, Botvinnik Defense, with f4 6 moves
- B25 Closed, Botvinnik Defense, with Nge2 6 moves
- B23 Closed, Carlsen Variation 5 moves
- B23 Closed, Chameleon Variation 3 moves
- B24 Closed, Fianchetto Variation 3 moves
- B23 Closed, Grob Attack 3 moves
- B23 Closed, Korchnoi Defense 3 moves
- B23 Closed, Portland Attack 4 moves
- B24 Closed, Smyslov Variation 7 moves
- B23 Closed, Traditional 2 moves
- B21 Coles Sicilian Gambit 5 moves
- B20 Czerniak Attack 2 moves
- B20 Czerniak Attack, Queen Fianchetto Variation 2 moves
- B22 Delayed Alapin Variation 5 moves
- B50 Delayed Alapin Variation, Basman-Palatnik Double Gambit 9 moves
- B50 Delayed Alapin Variation, Basman-Palatnik Gambit 6 moves
- B50 Delayed Alapin Variation, with d6 3 moves
- B40 Delayed Alapin Variation, with e6 3 moves
- B27 Double-Dutch Gambit 3 moves
- B70 Dragon Variation 5. Nc3 g6 5 moves
- B72 Dragon Variation 5…g6 6. Be3 6 moves
- B54 Dragon Variation, Accelerated Dragon 4 moves
- B70 Dragon Variation, Classical Variation 5…g6 6. Be2 6 moves
- B72 Dragon Variation, Classical Variation 6…Bg7 7. Be2 7 moves
- B72 Dragon Variation, Classical Variation 7. Be2 Nc6 7 moves
- B72 Dragon Variation, Classical Variation 7…Nc6 8. Nb3 8 moves
- B73 Dragon Variation, Classical Variation 7…Nc6 8. Be3 8 moves
- B74 Dragon Variation, Classical Variation, Alekhine Line 9 moves
- B72 Dragon Variation, Classical Variation, Amsterdam Variation 8 moves
- B73 Dragon Variation, Classical Variation, Battery Variation 9 moves
- B74 Dragon Variation, Classical Variation, Bernard Defense 13 moves
- B72 Dragon Variation, Classical Variation, Grigoriev Variation 9 moves
- B74 Dragon Variation, Classical Variation, Maróczy Line 10 moves
- B74 Dragon Variation, Classical Variation, Normal Line 9 moves
- B74 Dragon Variation, Classical Variation, Spielmann Variation 12 moves
- B74 Dragon Variation, Classical Variation, Stockholm Attack 14 moves
- B74 Dragon Variation, Classical Variation, Tartakower Line 10 moves
- B73 Dragon Variation, Classical Variation, Zollner Gambit 10 moves
- B70 Dragon Variation, Fianchetto Variation 6 moves
- B71 Dragon Variation, Levenfish Variation 6 moves
- B71 Dragon Variation, Levenfish Variation, Main Line 6 moves
- B35 Dragon Variation, Modern Bc4 Variation 7 moves
- B76 Dragon Variation, Yugoslav Attack 7. f3 O-O 7 moves
- B76 Dragon Variation, Yugoslav Attack 8. Qd2 Nc6 8 moves
- B77 Dragon Variation, Yugoslav Attack 9. Bc4 Bd7 9 moves
- B78 Dragon Variation, Yugoslav Attack 9…Bd7 10. O-O-O 10 moves
- B79 Dragon Variation, Yugoslav Attack 11…Rfc8 12. Bb3 12 moves
- B75 Dragon Variation, Yugoslav Attack, Belezky Line 7 moves
- B77 Dragon Variation, Yugoslav Attack, Byrne Variation 9 moves
- B78 Dragon Variation, Yugoslav Attack, Chinese Dragon 10 moves
- B77 Dragon Variation, Yugoslav Attack, Czerniak Variation 10 moves
- B75 Dragon Variation, Yugoslav Attack, Early Deviations 7 moves
- B75 Dragon Variation, Yugoslav Attack, Hungarian Dragon 7 moves
- B77 Dragon Variation, Yugoslav Attack, Main Line 8…Nc6 9. Bc4 9 moves
- B77 Dragon Variation, Yugoslav Attack, Main Line 9…Bd7 10. Bb3 10 moves
- B76 Dragon Variation, Yugoslav Attack, Modern Line 9 moves
- B78 Dragon Variation, Yugoslav Attack, Old Line 10 moves
- B76 Dragon Variation, Yugoslav Attack, Panov Variation 9 moves
- B79 Dragon Variation, Yugoslav Attack, Soltis Variation 12 moves
- B77 Dragon Variation, Yugoslav Attack, Sosonko Variation 9 moves
- B78 Dragon Variation, Yugoslav Attack, Topalov Variation 12 moves
- B40 Drazic Variation 3 moves
- B20 Euwe Attack, Prins Gambit 3 moves
- B32 Flohr Variation 4 moves
- B45 Four Knights Variation 5 moves
- B45 Four Knights Variation, American Attack 7 moves
- B45 Four Knights Variation, Cobra Variation 6 moves
- B45 Four Knights Variation, Exchange Variation 6 moves
- B45 Four Knights Variation, Sveshnikov Transfer 6 moves
- B32 Franco-Sicilian Variation 3 moves
- B27 Frederico Variation 3 moves
- B40 French Variation 2 moves
- B40 French Variation, Normal 4 moves
- B40 French Variation, Open 3 moves
- B40 French Variation, Westerinen Attack 3 moves
- B40 Gaw-Paw Variation 5 moves
- B20 Gloria Variation 4 moves
- B32 Godiva Variation 4 moves
- B23 Grand Prix Attack 3 moves
- B23 Grand Prix Attack, Schofman Variation 6 moves
- B20 Grob Variation 2 moves
- B21 Halasz Gambit 3 moves
- B22 Heidenfeld Variation 5 moves
- B27 Hyperaccelerated Dragon 2. Nf3 g6 2 moves
- B27 Hyperaccelerated Dragon 2…g6 3. d4 3 moves
- B27 Hyperaccelerated Pterodactyl 3 moves
- B27 Hyperaccelerated Pterodactyl, Exchange Variation 6 moves
- B27 Jalalabad Variation 2 moves
- B32 Kalashnikov Variation 5 moves
- B41 Kan Variation 4 moves
- B42 Kan Variation, Gipslis Variation 7 moves
- B43 Kan Variation, Knight Variation 5 moves
- B41 Kan Variation, Maróczy Bind, Bronstein Variation 7. Bd3 Nc6 7 moves
- B41 Kan Variation, Maróczy Bind, Bronstein Variation 7…Nc6 8. Bc2 8 moves
- B41 Kan Variation, Maróczy Bind, Hedgehog Variation 5 moves
- B41 Kan Variation, Maróczy Bind, Réti Variation 5 moves
- B42 Kan Variation, Modern Variation 5 moves
- B42 Kan Variation, Polugaevsky Variation 5 moves
- B42 Kan Variation, Swiss Cheese Variation 5 moves
- B43 Kan Variation, Wing Attack 5 moves
- B43 Kan Variation, Wing Attack, Christiansen's Dream 8 moves
- B40 Kan Variation, Wing Attack, Fianchetto Variation 6 moves
- B43 Kan Variation, Wing Attack, Spraggett Attack 7 moves
- B27 Katalimov Variation 2 moves
- B20 Keres Variation 2 moves
- B20 King David's Opening 2 moves
- B50 Kopec System 3 moves
- B50 Kotov Gambit 3 moves
- B40 Kramnik Variation 3 moves
- B20 Kronberger Variation 2 moves
- B20 Kronberger Variation, Nemeth Gambit 4 moves
- B56 Kupreichik Variation 5 moves
- B40 Kveinis Variation 4 moves
- B20 Lasker-Dunne Attack 2 moves
- B33 Lasker-Pelikan Variation 5 moves
- B33 Lasker-Pelikan Variation, Bird Variation 8 moves
- B33 Lasker-Pelikan Variation, Exchange Variation 6 moves
- B33 Lasker-Pelikan Variation, Retreat Variation 6 moves
- B33 Lasker-Pelikan Variation, Schlechter Variation 6 moves
- B33 Lasker-Pelikan Variation, Sveshnikov Variation 8. Na3 b5 8 moves
- B33 Lasker-Pelikan Variation, Sveshnikov Variation 10. Nd5 f5 10 moves
- B33 Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation 9 moves
- B33 Lasker-Pelikan Variation, Sveshnikov Variation, Novosibirsk Variation 10 moves
- B33 Lasker-Pelikan Variation, Sveshnikov Variation, Peresypkin's Sacrifice 11 moves
- B32 Löwenthal Variation 4 moves
- B57 Magnus Smith Trap 8 moves
- B40 Marshall Counterattack 3 moves
- B21 McDonnell Attack 2 moves
- B21 McDonnell Attack, Tal Gambit 3 moves
- B21 McDonnell Attack, Toilet Variation 3 moves
- B20 Mengarini Variation 2 moves
- B50 Modern Variations 2 moves
- B50 Modern Variations, Anti-Qxd4 Move Order 3 moves
- B50 Modern Variations, Anti-Qxd4 Move Order Accepted 4 moves
- B54 Modern Variations, Ginsberg Gambit 5 moves
- B54 Modern Variations, Main Line 4 moves
- B50 Modern Variations, Tartakower 4 moves
- B27 Mongoose Variation 2 moves
- B21 Morphy Gambit 3 moves
- B21 Morphy Gambit, Andreaschek Gambit 4 moves
- B51 Moscow Variation 3 moves
- B51 Moscow Variation, Dorfman Gambit 6 moves
- B52 Moscow Variation, Haag Gambit 7 moves
- B52 Moscow Variation, Main Line 3 moves
- B51 Moscow Variation, Moscow Gambit 9 moves
- B52 Moscow Variation, Sokolsky Variation 5 moves
- B20 Myers Attack, with a4 2 moves
- B20 Myers Attack, with h4 2 moves
- B90 Najdorf Variation 5. Nc3 a6 5 moves
- B94 Najdorf Variation 5…a6 6. Bg5 6 moves
- B95 Najdorf Variation 6. Bg5 e6 6 moves
- B96 Najdorf Variation 6…e6 7. f4 7 moves
- B98 Najdorf Variation 7. f4 Be7 7 moves
- B90 Najdorf Variation, Adams Attack 6 moves
- B93 Najdorf Variation, Amsterdam Variation 6 moves
- B98 Najdorf Variation, Browne Variation 9 moves
- B90 Najdorf Variation, Dekker Gambit 6 moves
- B90 Najdorf Variation, English Attack 6 moves
- B90 Najdorf Variation, English Attack, Anti-English 6 moves
- B90 Najdorf Variation, Freak Attack 6 moves
- B98 Najdorf Variation, Goteborg Variation 9 moves
- B94 Najdorf Variation, Ivkov Variation 12 moves
- B90 Najdorf Variation, Lipnitsky Attack 6 moves
- B99 Najdorf Variation, Main Line 9 moves
- B96 Najdorf Variation, Neo-Classical Defense 7 moves
- B92 Najdorf Variation, Opocensky Variation 5…a6 6. Be2 6 moves
- B92 Najdorf Variation, Opocensky Variation 7…Be6 8. Be3 8 moves
- B92 Najdorf Variation, Opocensky Variation, Modern Line 8 moves
- B92 Najdorf Variation, Opocensky Variation, Traditional Line 8 moves
- B97 Najdorf Variation, Poisoned Pawn Accepted 9 moves
- B97 Najdorf Variation, Poisoned Pawn Variation 7 moves
- B96 Najdorf Variation, Polugaevsky Variation 7 moves
- B96 Najdorf Variation, Polugaevsky Variation, Simagin Line 10 moves
- B84 Najdorf Variation, Scheveningen Variation 7 moves
- B98 Najdorf Variation, Traditional Line 8 moves
- B91 Najdorf Variation, Zagreb Variation 6 moves
- B32 Nimzo-American Variation 4 moves
- B29 Nimzowitsch Variation 2 moves
- B29 Nimzowitsch Variation, Advance Variation 3 moves
- B29 Nimzowitsch Variation, Closed Variation 3 moves
- B29 Nimzowitsch Variation, Exchange Variation 4 moves
- B29 Nimzowitsch Variation, Main Line 6 moves
- B30 Nyezhmetdinov-Rossolimo Attack 3 moves
- B30 Nyezhmetdinov-Rossolimo Attack, Brooklyn Retreat Defense 3 moves
- B31 Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation 3 moves
- B31 Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Gufeld Gambit 6 moves
- B31 Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Lutikov Gambit 6 moves
- B31 Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Totsky Attack 6 moves
- B31 Nyezhmetdinov-Rossolimo Attack, Gurgenidze Variation 6 moves
- B30 Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit 4 moves
- B28 O'Kelly Variation 2 moves
- B28 O'Kelly Variation, Aronin System 3 moves
- B28 O'Kelly Variation, Kieseritzky System 3 moves
- B28 O'Kelly Variation, Maróczy Bind 3 moves
- B32 O'Kelly Variation, Maróczy Bind, Geller Line 5 moves
- B28 O'Kelly Variation, Maróczy Bind, Paulsen Line 3 moves
- B28 O'Kelly Variation, Maróczy Bind, Robatsch Line 3 moves
- B28 O'Kelly Variation, Normal System 3 moves
- B28 O'Kelly Variation, Normal System, Cortlever Gambit 4 moves
- B28 O'Kelly Variation, Normal System, Smith-Morra Line 4 moves
- B28 O'Kelly Variation, Normal System, Taimanov Line 4 moves
- B28 O'Kelly Variation, Normal System, Zagorovsky Line 4 moves
- B28 O'Kelly Variation, Quiet System 3 moves
- B28 O'Kelly Variation, Réti System 3 moves
- B28 O'Kelly Variation, Venice System 3 moves
- B28 O'Kelly Variation, Venice System, Barcza Line 3 moves
- B28 O'Kelly Variation, Venice System, Gambit Line 4 moves
- B28 O'Kelly Variation, Venice System, Ljubojevic Line 3 moves
- B28 O'Kelly Variation, Venice System, Steiner Line 3 moves
- B28 O'Kelly Variation, Wing Gambit 3 moves
- B28 O'Kelly Variation, Yerevan System 3 moves
- B30 Old Sicilian 2 moves
- B32 Open 2…Nc6 3. d4 3 moves
- B32 Open 3. d4 cxd4 3 moves
- B32 Open 3…cxd4 4. Nxd4 4 moves
- B33 Open 4. Nxd4 Nf6 4 moves
- B40 Paulsen-Basman Defense 4 moves
- B40 Pin Variation 5 moves
- B40 Pin Variation, Jaffe Variation 6 moves
- B40 Pin Variation, Koch Variation 6 moves
- B27 Polish Gambit 2 moves
- B30 Portsmouth Gambit 3 moves
- B54 Prins Variation 5 moves
- B55 Prins Variation, Venice Attack 6 moves
- B27 Quinteros Variation 2 moves
- B60 Richter-Rauzer Variation 5…Nc6 6. Bg5 6 moves
- B62 Richter-Rauzer Variation 6. Bg5 e6 6 moves
- B62 Richter-Rauzer Variation 6…e6 7. Qd3 7 moves
- B63 Richter-Rauzer Variation, Classical Variation 7. Qd2 Be7 7 moves
- B64 Richter-Rauzer Variation, Classical Variation 9. f4 e5 9 moves
- B64 Richter-Rauzer Variation, Classical Variation 8…O-O 9. f4 9 moves
- B65 Richter-Rauzer Variation, Classical Variation 9…Nxd4 10. Qxd4 10 moves
- B63 Richter-Rauzer Variation, Classical Variation, Kantscher Line 10 moves
- B60 Richter-Rauzer Variation, Dragon Variation 6 moves
- B62 Richter-Rauzer Variation, Exchange Variation 7 moves
- B63 Richter-Rauzer Variation, Ivanov Variation 7 moves
- B60 Richter-Rauzer Variation, Modern Variation 6. Bg5 Bd7 6 moves
- B61 Richter-Rauzer Variation, Modern Variation 6…Bd7 7. Qd2 7 moves
- B67 Richter-Rauzer Variation, Neo-Modern Variation 8. O-O-O Bd7 8 moves
- B68 Richter-Rauzer Variation, Neo-Modern Variation 9. f4 Be7 9 moves
- B66 Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations 7 moves
- B69 Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdinov Attack 11 moves
- B62 Richter-Rauzer Variation, Podebrady Variation 7 moves
- B65 Richter-Rauzer Variation, Rauzer Attack 9 moves
- B63 Richter-Rauzer Variation, Traditional Variation 7 moves
- B62 Richter-Rauzer Variation, Vitolins Variation 7 moves
- B80 Scheveningen Variation 5 moves
- B85 Scheveningen Variation, Classical Main Line 10 moves
- B83 Scheveningen Variation, Classical Variation 5…d6 6. Be2 6 moves
- B84 Scheveningen Variation, Classical Variation 6. Be2 e6 6 moves
- B84 Scheveningen Variation, Classical Variation 7. O-O Qc7 7 moves
- B85 Scheveningen Variation, Classical Variation, Paulsen Variation 8. O-O Nc6 8 moves
- B85 Scheveningen Variation, Classical Variation, Paulsen Variation 8…d6 9. f4 9 moves
- B85 Scheveningen Variation, Classical Variation, Paulsen Variation 9…d6 10. a4 10 moves
- B90 Scheveningen Variation, Delayed Keres Attack 7 moves
- B90 Scheveningen Variation, Delayed Keres Attack, Perenyi Gambit 9 moves
- B90 Scheveningen Variation, English Attack, with f3 7 moves
- B80 Scheveningen Variation, English Attack, with Qd2 7 moves
- B80 Scheveningen Variation, Fianchetto Variation 6 moves
- B81 Scheveningen Variation, Keres Attack 6 moves
- B82 Scheveningen Variation, Matanovic Attack 6 moves
- B83 Scheveningen Variation, Modern Variation 6. Be2 Nf6 6 moves
- B83 Scheveningen Variation, Modern Variation 8…Nc6 9. Be3 9 moves
- B83 Scheveningen Variation, Modern Variation 9…Bd7 10. Nb3 10 moves
- B82 Scheveningen Variation, Tal Variation 8 moves
- B80 Scheveningen Variation, Vitolins Variation 6 moves
- B21 Smith-Morra Gambit 1…c5 2. d4 2 moves
- B21 Smith-Morra Gambit 2…cxd4 3. c3 3 moves
- B21 Smith-Morra Gambit Accepted 3 moves
- B21 Smith-Morra Gambit Accepted, Chicago Defense 9. Bb3 Ra7 9 moves
- B21 Smith-Morra Gambit Accepted, Chicago Defense 7. O-O a6 7 moves
- B21 Smith-Morra Gambit Accepted, Classical Formation 7 moves
- B21 Smith-Morra Gambit Accepted, Danish Variation 4 moves
- B21 Smith-Morra Gambit Accepted, Fianchetto Defense 5 moves
- B21 Smith-Morra Gambit Accepted, Finegold Defense 8 moves
- B21 Smith-Morra Gambit Accepted, Kan Formation 5 moves
- B21 Smith-Morra Gambit Accepted, Larsen Defense 8 moves
- B21 Smith-Morra Gambit Accepted, Morphy Defense 6 moves
- B21 Smith-Morra Gambit Accepted, Morphy Defense Deferred 8 moves
- B21 Smith-Morra Gambit Accepted, Paulsen Formation 6 moves
- B21 Smith-Morra Gambit Accepted, Pin Defense 6 moves
- B21 Smith-Morra Gambit Accepted, Scheveningen Formation 6 moves
- B21 Smith-Morra Gambit Accepted, Siberian Variation 6 moves
- B21 Smith-Morra Gambit Accepted, Siberian Variation, Siberian Trap 8 moves
- B21 Smith-Morra Gambit Accepted, Sozin Formation 8 moves
- B21 Smith-Morra Gambit Accepted, Taimanov Formation 6 moves
- B21 Smith-Morra Gambit Declined, Alapin Formation 3 moves
- B21 Smith-Morra Gambit Declined, Center Formation 3 moves
- B21 Smith-Morra Gambit Declined, Dubois Variation 4 moves
- B21 Smith-Morra Gambit Declined, Push Variation 3 moves
- B21 Smith-Morra Gambit Declined, Scandinavian Formation 3 moves
- B21 Smith-Morra Gambit Declined, Wing Formation 3 moves
- B40 Smith-Morra Gambit Deferred 4 moves
- B86 Sozin Attack 6 moves
- B88 Sozin Attack, Fischer Variation 9 moves
- B87 Sozin Attack, Flank Variation 7 moves
- B88 Sozin Attack, Leonhardt Variation 6 moves
- B89 Sozin Attack, Main Line 7 moves
- B89 Sozin Attack, Main Line, Sherbakov Variation 10 moves
- B56 Spielmann Variation 6 moves
- B20 Staunton-Cochrane Variation 2 moves
- B44 Taimanov Variation 4. Nxd4 Nc6 4 moves
- B45 Taimanov Variation 4…Nc6 5. Nc3 5 moves
- B46 Taimanov Variation 5. Nc3 a6 5 moves
- B47 Taimanov Variation, Bastrikov Variation 5. Nc3 Qc7 5 moves
- B49 Taimanov Variation, Bastrikov Variation 6…a6 7. Be2 7 moves
- B48 Taimanov Variation, Bastrikov Variation, English Attack 6 moves
- B47 Taimanov Variation, Bastrikov Variation, Ponomariov Gambit 8 moves
- B44 Taimanov Variation, Gary Gambit 8 moves
- B44 Taimanov Variation, Modern Line 10 moves
- B44 Taimanov Variation, Szén Variation 5 moves
- B89 Velimirovic Attack 8 moves
- B56 Venice Attack 6 moves
- B20 Wing Gambit 2 moves
- B40 Wing Gambit Deferred 3 moves
- B20 Wing Gambit, Abrahams Variation 3 moves
- B20 Wing Gambit, Carlsbad Variation 3 moves
- B50 Wing Gambit, Deferred Variation 3 moves
- B20 Wing Gambit, Marienbad Variation 5 moves
- B20 Wing Gambit, Marshall Variation 3 moves
- B20 Wing Gambit, Nanu Gambit 7 moves
- B20 Wing Gambit, Romanian Defense 7 moves
- B20 Wing Gambit, Santasiere Variation 3 moves
- B56 Yates Variation 6 moves
Slav Defense 50 lines
- D10 Slav Defense 2. c4 c6 2 moves
- D10 Slav Defense 2…c6 3. Nc3 3 moves
- D10 Slav Defense 3. Nc3 dxc4 3 moves
- D16 Alapin Variation 5 moves
- D15 Alekhine Variation 5 moves
- D11 Bonet Gambit 4 moves
- D11 Breyer Variation 4 moves
- D15 Chebanenko Variation 4. Nc3 a6 4 moves
- D15 Chebanenko Variation 5. e3 Bf5 5 moves
- D15 Chebanenko Variation, Advance System 5 moves
- D17 Czech Variation 5 moves
- D17 Czech Variation, Bled Attack 6 moves
- D17 Czech Variation, Carlsbad Variation 8 moves
- D17 Czech Variation, Carlsbad Variation, Morozevich Variation 11 moves
- D18 Czech Variation, Classical System 6 moves
- D19 Czech Variation, Classical System, Main Line 9 moves
- D19 Czech Variation, Dutch Variation 8 moves
- D19 Czech Variation, Dutch Variation, Sämisch Variation 10 moves
- D17 Czech Variation, Krause Attack 6 moves
- D17 Czech Variation, Krause Attack, Fazekas Gambit 7 moves
- D18 Czech Variation, Lasker Variation 6 moves
- D17 Czech Variation, Wiesbaden Variation 6 moves
- D17 Czech Variation, Wiesbaden Variation, Sharp Line 8 moves
- D10 Diemer Gambit 3 moves
- D10 Exchange Variation 2…c6 3. cxd5 3 moves
- D13 Exchange Variation 4. cxd5 cxd5 4 moves
- D10 Exchange Variation, Boor Attack 5 moves
- D13 Exchange Variation, Schallopp Variation 6 moves
- D14 Exchange Variation, Symmetrical Line 6 moves
- D14 Exchange Variation, Trifunovic Variation 8 moves
- D15 Geller Gambit 4…dxc4 5. e4 5 moves
- D15 Geller Gambit 5…b5 6. e5 6 moves
- D11 Modern Line 2…c6 3. Nf3 3 moves
- D11 Modern Line 5. Bg2 g6 5 moves
- D11 Quiet Variation 4 moves
- D12 Quiet Variation, Amsterdam Variation 7 moves
- D12 Quiet Variation, Landau Variation 8 moves
- D11 Quiet Variation, Pin Defense 4 moves
- D12 Quiet Variation, Schallopp Defense 4. e3 Bf5 4 moves
- D12 Quiet Variation, Schallopp Defense 5. Nc3 e6 5 moves
- D15 Schlechter Variation 4 moves
- D10 Slav Gambit, Alekhine Attack 4 moves
- D16 Smyslov Variation 5 moves
- D16 Soultanbeieff Variation 5 moves
- D16 Steiner Variation 5 moves
- D15 Süchting Variation 4 moves
- D15 Three Knights Variation 4 moves
- D15 Two Knights Attack 4 moves
- D10 Winawer Countergambit 3 moves
- D10 Winawer Countergambit, Anti-Winawer Gambit 4 moves