3810 ECO lines with main-line moves and diagrams. Start with the flagship families, or browse by volume.
| Name | ECO | Moves |
|---|
| Italian Game: Two Knights Defense, Ulvestad Variation, Kurkin Gambit | C57 | 13 |
| Italian Game: Two Knights Defense | C58 | 15 |
| Italian Game: Two Knights Defense, Blackburne Variation | C58 | 16 |
| Italian Game: Two Knights Defense, Colman Variation | C58 | 16 |
| Italian Game: Two Knights Defense, Maróczy Variation | C58 | 18 |
| Italian Game: Two Knights Defense, Paoli Variation | C58 | 17 |
| Italian Game: Two Knights Defense, Polerio Defense | C58 | 10 |
| Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | C58 | 11 |
| Italian Game: Two Knights Defense, Polerio Defense, Bogoljubow Variation | C58 | 15 |
| Italian Game: Two Knights Defense, Polerio Defense, Kieseritzky Variation | C58 | 11 |
| Italian Game: Two Knights Defense, Polerio Defense, Yankovich Variation | C58 | 19 |
| Italian Game: Two Knights Defense, Knorre Variation | C59 | 23 |
| Italian Game: Two Knights Defense, Polerio Defense, Göring Variation | C59 | 20 |
| Italian Game: Two Knights Defense, Polerio Defense, Suhle Defense | C59 | 16 |
| Italian Game: Two Knights Defense, Steinitz Variation | C59 | 17 |
| Ruy Lopez | C60 | 5 |
| Ruy Lopez: Alapin Defense | C60 | 6 |
| Ruy Lopez: Alapin Defense, Alapin Gambit | C60 | 10 |
| Ruy Lopez: Brentano Gambit | C60 | 6 |
| Ruy Lopez: Bulgarian Variation | C60 | 6 |
| Ruy Lopez: Cozio Defense | C60 | 6 |
| Ruy Lopez: Cozio Defense, Paulsen Variation | C60 | 8 |
| Ruy Lopez: Cozio Defense, Tartakower Gambit | C60 | 16 |
| Ruy Lopez: Fianchetto Defense | C60 | 6 |
| Ruy Lopez: Fianchetto Defense, Kevitz Gambit | C60 | 8 |
| Ruy Lopez: Lucena Variation | C60 | 6 |
| Ruy Lopez: Nürnberg Variation | C60 | 6 |
| Ruy Lopez: Pollock Defense | C60 | 6 |
| Ruy Lopez: Retreat Variation | C60 | 6 |
| Ruy Lopez: Rotary-Albany Gambit | C60 | 6 |
| Ruy Lopez: Spanish Countergambit | C60 | 6 |
| Ruy Lopez: Spanish Countergambit, Harding Countergambit, Fricke Gambit | C60 | 9 |
| Ruy Lopez: Spanish Countergambit, Harding Gambit | C60 | 9 |
| Ruy Lopez: Vinogradov Variation | C60 | 6 |
| Ruy Lopez: Bird Variation | C61 | 6 |
| Ruy Lopez: Bird Variation, Paulsen Variation | C61 | 10 |
| Ruy Lopez: Steinitz Defense | C62 | 6 |
| Ruy Lopez: Steinitz Defense | C62 | 7 |
| Ruy Lopez: Steinitz Defense, Center Gambit | C62 | 9 |
| Ruy Lopez: Steinitz Defense, Nimzowitsch Attack | C62 | 11 |
| Ruy Lopez: Steinitz Defense, Semi-Duras Variation | C62 | 9 |
| Ruy Lopez: Schliemann Defense | C63 | 6 |
| Ruy Lopez: Schliemann Defense, Classical Variation | C63 | 14 |
| Ruy Lopez: Schliemann Defense, Dyckhoff Variation | C63 | 7 |
| Ruy Lopez: Schliemann Defense, Exchange Variation | C63 | 7 |
| Ruy Lopez: Schliemann Defense, Jaenisch Gambit Accepted | C63 | 7 |
| Ruy Lopez: Schliemann Defense, Kostić Defense | C63 | 10 |
| Ruy Lopez: Schliemann Defense, Möhring Variation | C63 | 14 |
| Ruy Lopez: Schliemann Defense, Schönemann Attack | C63 | 7 |
| Ruy Lopez: Schliemann Defense, Tartakower Variation | C63 | 10 |
| Ruy Lopez: Classical Defense, Benelux Variation | C64 | 12 |
| Ruy Lopez: Classical Defense, Boden Variation | C64 | 8 |
| Ruy Lopez: Classical Defense, Zaitsev Variation | C64 | 9 |
| Ruy Lopez: Classical Variation | C64 | 6 |
| Ruy Lopez: Classical Variation, Central Variation | C64 | 7 |
| Ruy Lopez: Classical Variation, Charousek Variation | C64 | 8 |
| Ruy Lopez: Classical Variation, Cordel Gambit | C64 | 8 |
| Ruy Lopez: Classical Variation, Konikowski Gambit | C64 | 8 |
| Ruy Lopez: Classical Variation, Modern Main Line | C64 | 13 |
| Ruy Lopez: Classical Variation, Spanish Wing Gambit | C64 | 7 |
| Ruy Lopez: Berlin Defense | C65 | 6 |
| Ruy Lopez: Berlin Defense | C65 | 7 |
| Ruy Lopez: Berlin Defense, Anti-Berlin Variation | C65 | 7 |
| Ruy Lopez: Berlin Defense, Anti-Berlin Variation, Anderssen Variation | C65 | 9 |
| Ruy Lopez: Berlin Defense, Anti-Berlin Variation, Duras Variation | C65 | 9 |
| Ruy Lopez: Berlin Defense, Anti-Berlin Variation, Kaufmann Variation | C65 | 9 |
| Ruy Lopez: Berlin Defense, Anti-Berlin Variation, Mortimer Trap | C65 | 10 |
| Ruy Lopez: Berlin Defense, Anti-Berlin Variation, Mortimer Variation | C65 | 8 |
| Ruy Lopez: Berlin Defense, Beverwijk Variation | C65 | 8 |
| Ruy Lopez: Berlin Defense, Fishing Pole Variation | C65 | 8 |
| Ruy Lopez: Berlin Defense, Nyholm Attack | C65 | 9 |
| Ruy Lopez: Classical Variation, Zukertort Gambit | C65 | 9 |
| Ruy Lopez: Halloween Attack | C65 | 7 |
| Ruy Lopez: Berlin Defense, Closed Bernstein Variation | C66 | 13 |
| Ruy Lopez: Berlin Defense, Closed Showalter Variation | C66 | 13 |
| Ruy Lopez: Berlin Defense, Closed Wolf Variation | C66 | 12 |
| Ruy Lopez: Berlin Defense, Hedgehog Variation | C66 | 12 |
| Ruy Lopez: Berlin Defense, Improved Steinitz Defense | C66 | 8 |
| Ruy Lopez: Berlin Defense, Tarrasch Trap | C66 | 14 |
| Ruy Lopez: Closed Berlin Defense, Chigorin Variation | C66 | 10 |
| Ruy Lopez: Berlin Defense, Berlin Wall | C67 | 18 |
| Ruy Lopez: Berlin Defense, Cordel Variation | C67 | 16 |
| Ruy Lopez: Berlin Defense, Minckwitz Variation | C67 | 11 |
| Ruy Lopez: Berlin Defense, Pillsbury Variation | C67 | 17 |
| Ruy Lopez: Berlin Defense, Rio Gambit Accepted | C67 | 8 |
| Ruy Lopez: Berlin Defense, Rio de Janeiro Variation | C67 | 10 |
| Ruy Lopez: Berlin Defense, Rio de Janeiro Variation | C67 | 26 |
| Ruy Lopez: Berlin Defense, Rosenthal Variation | C67 | 10 |
| Ruy Lopez: Berlin Defense, Trifunovic Variation | C67 | 12 |
| Ruy Lopez: Berlin Defense, Winawer Attack | C67 | 17 |
| Ruy Lopez: Berlin Defense, Zukertort Variation | C67 | 17 |
| Ruy Lopez: Berlin Defense, l'Hermet Variation | C67 | 10 |
| Ruy Lopez: Berlin Defense, l'Hermet Variation, Berlin Wall Defense | C67 | 16 |
| Ruy Lopez: Berlin Defense, l'Hermet Variation, Westerinen Line | C67 | 14 |
| Ruy Lopez: Open Berlin Defense, Showalter Variation | C67 | 11 |
| Ruy Lopez: Open Berlin Defense, l'Hermet Variation | C67 | 11 |
| Ruy Lopez: Exchange Variation | C68 | 7 |
| Ruy Lopez: Exchange Variation, Alekhine Variation | C68 | 14 |
| Ruy Lopez: Exchange Variation, Keres Variation | C68 | 9 |
| Ruy Lopez: Exchange Variation, Lutikov Variation | C68 | 8 |
Family pages group related lines: the family head with a diagram, main continuations and every catalogued variation.