ECO C17
6 named openings and variations are classified as C17. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.
- French Defense: Winawer Variation, Advance Variation, Moscow VariationC171. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Qg4
- French Defense: Winawer Variation, Bogoljubow VariationC171. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2
- French Defense: Winawer Variation, Bogoljubow Variation, Icelandic DefenseC171. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 Ne7 6. f4
- French Defense: Winawer Variation, Maróczy-Wallis VariationC171. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 cxd4 6. axb4 dxc3
- French Defense: Winawer Variation, Retreat VariationC171. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5
- French Defense: Winawer Variation, Retreat Variation, Armenian LineC171. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. b4 cxd4