C01: French, exchange, Bogolyubov variation

C01 Sub-variants:

• French, exchange variation
  1. e4 e6 2. d4 d5 3. exd5
• French, exchange, Svenonius variation
  1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nf6 5. Bg5
• French, exchange, Bogolyubov variation
  1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nf6 5. Bg5 Nc6