C11: French, Swiss variation
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bd3
French, Swiss variation
C11 Sub-variants:
- French defence
1. e4 e6 2. d4 d5 3. Nc3 Nf6
- French, Swiss variation
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bd3
- French, Henneberger variation
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Be3
- French, Steinitz variation
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5
- French, Steinitz, Bradford attack
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. dxc5 Bxc5 7. Qg4
- French, Steinitz variation
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. dxc5 Nc6
- French, Steinitz, Brodsky-Jones variation
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. dxc5 Nc6 7. a3 Bxc5 8. Qg4 O-O 9. Nf3 f6
- French, Steinitz variation
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3
- French, Steinitz, Boleslavsky variation
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3
- French, Steinitz, Gledhill attack
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Qg4
- French, Burn variation
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4