3810 ECO lines with main-line moves and diagrams. Start with the flagship families, or browse by volume.
| Name | ECO | Moves |
|---|
| French Defense | C00 | 2 |
| French Defense | C00 | 4 |
| French Defense: Alapin Gambit | C00 | 5 |
| French Defense: Baeuerle Gambit | C00 | 4 |
| French Defense: Banzai-Leong Gambit | C00 | 3 |
| French Defense: Banzai-Leong Gambit, Pinova Gambit | C00 | 5 |
| French Defense: Bird Invitation | C00 | 3 |
| French Defense: Carlson Gambit | C00 | 7 |
| French Defense: Chigorin Variation | C00 | 3 |
| French Defense: Diemer-Duhm Gambit | C00 | 5 |
| French Defense: Diemer-Duhm Gambit Accepted | C00 | 6 |
| French Defense: Franco-Hiva Gambit | C00 | 4 |
| French Defense: Franco-Hiva Gambit Accepted | C00 | 5 |
| French Defense: Franco-Sicilian Defense | C00 | 4 |
| French Defense: Hoffmann Gambit | C00 | 8 |
| French Defense: Horwitz Attack | C00 | 3 |
| French Defense: Horwitz Attack, Papa-Ticulat Gambit | C00 | 5 |
| French Defense: King's Indian Attack | C00 | 3 |
| French Defense: King's Indian Attack, Franco-Hiva Gambit | C00 | 4 |
| French Defense: Knight Variation | C00 | 3 |
| French Defense: Knight Variation, Franco-Hiva Gambit | C00 | 4 |
| French Defense: La Bourdonnais Variation | C00 | 3 |
| French Defense: La Bourdonnais Variation, Reuter Gambit | C00 | 6 |
| French Defense: Mediterranean Defense | C00 | 4 |
| French Defense: Morphy Gambit | C00 | 5 |
| French Defense: Normal Variation | C00 | 3 |
| French Defense: Orthoschnapp Gambit | C00 | 7 |
| French Defense: Pelikan Variation | C00 | 5 |
| French Defense: Perseus Gambit | C00 | 5 |
| French Defense: Queen's Knight | C00 | 3 |
| French Defense: Reversed Philidor Formation | C00 | 9 |
| French Defense: Réti-Spielmann Attack | C00 | 3 |
| French Defense: Schlechter Variation | C00 | 5 |
| French Defense: St. George Defense | C00 | 4 |
| French Defense: St. George Defense, Sanky-George Gambit | C00 | 6 |
| French Defense: St. George Defense, St. George Gambit | C00 | 8 |
| French Defense: St. George Defense, Three Pawn Attack | C00 | 5 |
| French Defense: St. George Defense, Traditional Line | C00 | 12 |
| French Defense: Steiner Variation | C00 | 3 |
| French Defense: Steinitz Attack | C00 | 3 |
| French Defense: Two Knights Variation | C00 | 5 |
| French Defense: Wing Gambit | C00 | 7 |
| Rat Defense: Small Center Defense | C00 | 4 |
| French Defense: Exchange Variation | C01 | 5 |
| French Defense: Exchange Variation | C01 | 7 |
| French Defense: Exchange Variation | C01 | 7 |
| French Defense: Exchange Variation, Bogoljubow Variation | C01 | 10 |
| French Defense: Exchange Variation, Monte Carlo Variation | C01 | 7 |
| French Defense: Exchange Variation, Svenonius Variation | C01 | 9 |
| French Defense: Advance Variation | C02 | 5 |
| French Defense: Advance Variation | C02 | 6 |
| French Defense: Advance Variation | C02 | 7 |
| French Defense: Advance Variation | C02 | 8 |
| French Defense: Advance Variation, Euwe Variation | C02 | 10 |
| French Defense: Advance Variation, Extended Bishop Swap | C02 | 6 |
| French Defense: Advance Variation, Frenkel Gambit | C02 | 7 |
| French Defense: Advance Variation, Kupreichik Variation | C02 | 9 |
| French Defense: Advance Variation, Lputian Variation | C02 | 12 |
| French Defense: Advance Variation, Main Line | C02 | 11 |
| French Defense: Advance Variation, Milner-Barry Gambit | C02 | 11 |
| French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | C02 | 13 |
| French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | C02 | 15 |
| French Defense: Advance Variation, Milner-Barry Gambit, Main Line | C02 | 15 |
| French Defense: Advance Variation, Milner-Barry Gambit, Sørensen Variation | C02 | 17 |
| French Defense: Advance Variation, Nimzowitsch Attack | C02 | 7 |
| French Defense: Advance Variation, Nimzowitsch Gambit | C02 | 9 |
| French Defense: Advance Variation, Nimzowitsch System | C02 | 7 |
| French Defense: Advance Variation, Paulsen Attack | C02 | 9 |
| French Defense: Advance Variation, Ruisdonk Gambit | C02 | 9 |
| French Defense: Advance Variation, Steinitz Variation | C02 | 7 |
| French Defense: Advance Variation, Wade Variation | C02 | 10 |
| French Defense: Tarrasch Variation | C03 | 5 |
| French Defense: Tarrasch Variation, Guimard Defense | C03 | 6 |
| French Defense: Tarrasch Variation, Guimard Defense, Thunderbunny Variation | C03 | 10 |
| French Defense: Tarrasch Variation, Haberditz Variation | C03 | 6 |
| French Defense: Tarrasch Variation, Modern System | C03 | 6 |
| French Defense: Tarrasch Variation, Morozevich Variation | C03 | 6 |
| French Defense: Tarrasch Variation, Guimard Defense, Main Line | C04 | 8 |
| French Defense: Tarrasch Variation, Botvinnik Variation | C05 | 12 |
| French Defense: Tarrasch Variation, Closed Variation | C05 | 6 |
| French Defense: Tarrasch Variation, Closed Variation | C05 | 12 |
| French Defense: Tarrasch Variation, Pawn Center Variation | C05 | 9 |
| French Defense: Tarrasch Variation, Closed Variation, Main Line | C06 | 15 |
| French Defense: Tarrasch Variation, Leningrad Variation | C06 | 16 |
| French Defense: Tarrasch Variation, Chistyakov Defense | C07 | 8 |
| French Defense: Tarrasch Variation, Chistyakov Defense, Modern Line | C07 | 20 |
| French Defense: Tarrasch Variation, Eliskases Variation | C07 | 12 |
| French Defense: Tarrasch Variation, Open System | C07 | 6 |
| French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | C07 | 7 |
| French Defense: Tarrasch Variation, Open System, Shaposhnikov Gambit | C07 | 8 |
| French Defense: Tarrasch Variation, Open System, Süchting Line | C07 | 7 |
| French Defense: Tarrasch Variation, Open System | C08 | 8 |
| French Defense: Tarrasch Variation, Open System, Advance Line | C08 | 10 |
| French Defense: Tarrasch Variation, Open System, Main Line | C09 | 10 |
| French Defense: Tarrasch Variation, Open System, Main Line | C09 | 17 |
| French Defense: Hecht-Reefschläger Variation | C10 | 6 |
| French Defense: Marshall Gambit | C10 | 6 |
| French Defense: Paulsen Variation | C10 | 5 |
| French Defense: Rubinstein Variation | C10 | 6 |
| French Defense: Rubinstein Variation, Blackburne Defense | C10 | 8 |
Family pages group related lines: the family head with a diagram, main continuations and every catalogued variation.