C77: Ruy Lopez, Morphy defence, Duras variation

C77 Sub-variants:

• Ruy Lopez, Morphy defence
  1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6
• Ruy Lopez, four knights (Tarrasch) variation
  1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Nc3
• Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)
  1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Bxc6
• Ruy Lopez, Wormald (Alapin) attack
  1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2
• Ruy Lopez, Wormald attack, Gruenfeld variation
  1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. d4 d6 8. c3 Bg4
• Ruy Lopez, Anderssen variation
  1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3
• Ruy Lopez, Morphy defence, Duras variation
  1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c4