3810 ECO lines with main-line moves and diagrams. Start with the flagship families, or browse by volume.
| Name | ECO | Moves |
| French Defense: Rubinstein Variation, Capablanca Line | C10 | 13 |
| French Defense: Rubinstein Variation, Ellis Gambit | C10 | 8 |
| French Defense: Rubinstein Variation, Fort Knox Variation | C10 | 10 |
| French Defense: Rubinstein Variation, Kasparov Attack | C10 | 13 |
| French Defense: Rubinstein Variation, Maric Variation | C10 | 8 |
| French Defense: Classical Variation | C11 | 6 |
| French Defense: Classical Variation | C11 | 7 |
| French Defense: Classical Variation, Burn Variation | C11 | 8 |
| French Defense: Classical Variation, Burn Variation, Main Line | C11 | 14 |
| French Defense: Classical Variation, Burn Variation, Morozevich Line | C11 | 12 |
| French Defense: Classical Variation, Delayed Exchange Variation | C11 | 7 |
| French Defense: Classical Variation, Shirov-Anand Variation | C11 | 9 |
| French Defense: Classical Variation, Steinitz Variation | C11 | 7 |
| French Defense: Classical Variation, Swiss Variation | C11 | 7 |
| French Defense: Henneberger Variation | C11 | 7 |
| French Defense: Steinitz Variation | C11 | 10 |
| French Defense: Steinitz Variation | C11 | 11 |
| French Defense: Steinitz Variation | C11 | 11 |
| French Defense: Steinitz Variation | C11 | 12 |
| French Defense: Steinitz Variation | C11 | 11 |
| French Defense: Steinitz Variation, Boleslavsky Variation | C11 | 13 |
| French Defense: Steinitz Variation, Bradford Attack Variation | C11 | 13 |
| French Defense: Steinitz Variation, Brodsky-Jones Variation | C11 | 18 |
| French Defense: Steinitz Variation, Gledhill Attack | C11 | 9 |
| French Defense: McCutcheon Variation | C12 | 8 |
| French Defense: McCutcheon Variation, Advance Variation | C12 | 9 |
| French Defense: McCutcheon Variation, Bernstein Variation | C12 | 11 |
| French Defense: McCutcheon Variation, Bogoljubow Variation | C12 | 14 |
| French Defense: McCutcheon Variation, Chigorin Variation | C12 | 11 |
| French Defense: McCutcheon Variation, Dr. Olland Variation | C12 | 11 |
| French Defense: McCutcheon Variation, Duras Variation | C12 | 17 |
| French Defense: McCutcheon Variation, Exchange Variation | C12 | 9 |
| French Defense: McCutcheon Variation, Grigoriev Variation | C12 | 17 |
| French Defense: McCutcheon Variation, Janowski Variation | C12 | 11 |
| French Defense: McCutcheon Variation, Lasker Variation | C12 | 12 |
| French Defense: McCutcheon Variation, Lasker Variation | C12 | 16 |
| French Defense: McCutcheon Variation, Tartakower Variation | C12 | 12 |
| French Defense: Alekhine-Chatard Attack | C13 | 11 |
| French Defense: Alekhine-Chatard Attack, Albin-Chatard Gambit | C13 | 14 |
| French Defense: Alekhine-Chatard Attack, Breyer Variation | C13 | 12 |
| French Defense: Alekhine-Chatard Attack, Maróczy Variation | C13 | 12 |
| French Defense: Alekhine-Chatard Attack, Spielmann Variation | C13 | 12 |
| French Defense: Alekhine-Chatard Attack, Teichmann Variation | C13 | 12 |
| French Defense: Classical Variation | C13 | 10 |
| French Defense: Classical Variation, Frankfurt Variation | C13 | 12 |
| French Defense: Classical Variation, Normal Variation | C13 | 8 |
| French Defense: Classical Variation, Richter Attack | C13 | 9 |
| French Defense: Classical Variation, Richter Attack | C13 | 13 |
| French Defense: Classical Variation, Tartakower Variation | C13 | 10 |
| French Defense: Classical Variation, Vistaneckis Variation | C13 | 10 |
| French Defense: Classical Variation | C14 | 11 |
| French Defense: Classical Variation | C14 | 12 |
| French Defense: Classical Variation, Alapin Variation | C14 | 13 |
| French Defense: Classical Variation, Pollock Variation | C14 | 13 |
| French Defense: Classical Variation, Rubinstein Variation | C14 | 13 |
| French Defense: Classical Variation, Stahlberg Variation | C14 | 20 |
| French Defense: Classical Variation, Steinitz Variation | C14 | 13 |
| French Defense: Classical Variation, Tarrasch Variation | C14 | 13 |
| French Defense: McCutcheon Variation, Wolf Gambit | C15 | 9 |
| French Defense: Winawer Variation | C15 | 6 |
| French Defense: Winawer Variation, Alekhine Gambit Accepted | C15 | 10 |
| French Defense: Winawer Variation, Alekhine Gambit, Alatortsev Variation | C15 | 16 |
| French Defense: Winawer Variation, Alekhine Gambit, Kan Variation | C15 | 12 |
| French Defense: Winawer Variation, Alekhine-Maróczy Gambit | C15 | 7 |
| French Defense: Winawer Variation, Delayed Exchange Variation | C15 | 7 |
| French Defense: Winawer Variation, Exchange Variation, Canal Attack | C15 | 11 |
| French Defense: Winawer Variation, Fingerslip Variation | C15 | 7 |
| French Defense: Winawer Variation, Fingerslip Variation, Kunin Double Gambit | C15 | 10 |
| French Defense: Winawer Variation, Fingerslip Variation, Main Line | C15 | 13 |
| French Defense: Winawer Variation, Fingerslip Variation, Schwarz's Line | C15 | 9 |
| French Defense: Winawer Variation, Kondratiyev Variation | C15 | 11 |
| French Defense: Winawer Variation, Winckelmann-Reimer Gambit | C15 | 11 |
| French Defense: Winawer Variation, Advance Variation | C16 | 7 |
| French Defense: Winawer Variation, Petrosian Variation | C16 | 8 |
| French Defense: Winawer Variation, Advance Variation | C17 | 8 |
| French Defense: Winawer Variation, Advance Variation | C17 | 9 |
| French Defense: Winawer Variation, Advance Variation | C17 | 13 |
| French Defense: Winawer Variation, Advance Variation, Moscow Variation | C17 | 9 |
| French Defense: Winawer Variation, Bogoljubow Variation | C17 | 9 |
| French Defense: Winawer Variation, Bogoljubow Variation, Icelandic Defense | C17 | 11 |
| French Defense: Winawer Variation, Maróczy-Wallis Variation | C17 | 12 |
| French Defense: Winawer Variation, Retreat Variation | C17 | 10 |
| French Defense: Winawer Variation, Retreat Variation, Armenian Line | C17 | 12 |
| French Defense: Winawer Variation, Advance Variation | C18 | 11 |
| French Defense: Winawer Variation, Advance Variation | C18 | 12 |
| French Defense: Winawer Variation, Advance Variation, with Bd3 | C18 | 13 |
| French Defense: Winawer Variation, Advance Variation, with Bd3 | C18 | 14 |
| French Defense: Winawer Variation, Advance Variation, with h4 | C18 | 13 |
| French Defense: Winawer Variation, Advance Variation, with h4 | C18 | 14 |
| French Defense: Winawer Variation, Classical Variation | C18 | 12 |
| French Defense: Winawer Variation, Eingorn Variation | C18 | 14 |
| French Defense: Winawer Variation, Poisoned Pawn Variation | C18 | 14 |
| French Defense: Winawer Variation, Poisoned Pawn Variation | C18 | 15 |
| French Defense: Winawer Variation, Poisoned Pawn Variation | C18 | 18 |
| French Defense: Winawer Variation, Poisoned Pawn Variation Declined | C18 | 15 |
| French Defense: Winawer Variation, Poisoned Pawn Variation, Main Line | C18 | 19 |
| French Defense: Winawer Variation, Poisoned Pawn Variation, Paoli Variation | C18 | 19 |
| French Defense: Winawer Variation, Portisch-Hook Variation | C18 | 12 |
| French Defense: Winawer Variation, Warsaw Variation | C18 | 14 |
| French Defense: Winawer Variation, Advance Variation, Smyslov Variation | C19 | 13 |
Family pages group related lines: the family head with a diagram, main continuations and every catalogued variation.