D83: Gruenfeld, Gruenfeld gambit, Botvinnik variation

D83 Sub-variants:

• Gruenfeld, Gruenfeld gambit
  1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O
• Gruenfeld, Gruenfeld gambit, Capablanca variation
  1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Rc1
• Gruenfeld, Gruenfeld gambit, Botvinnik variation
  1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Rc1 c5 7. dxc5 Be6