C67: Ruy Lopez, open Berlin defence, Showalter variation

C67 Sub-variants:

• Ruy Lopez, Berlin defence, open variation
  1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4
• Ruy Lopez, open Berlin defence, l'Hermet variation
  1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. dxe5
• Ruy Lopez, open Berlin defence, Showalter variation
  1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Ba4
• Ruy Lopez, open Berlin defence, 5...Be7
  1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7
• Ruy Lopez, Berlin defence, Rio de Janeiro variation
  1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. Nc3 O-O 10. Re1 Nc5 11. Nd4 Ne6 12. Be3 Nxd4 13. Bxd4 c5
• Ruy Lopez, Berlin defence, Zukertort variation
  1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. c4
• Ruy Lopez, Berlin defence, Pillsbury variation
  1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. b3
• Ruy Lopez, Berlin defence, Winawer attack
  1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. Nd4
• Ruy Lopez, Berlin defence, Cordel variation
  1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nf5
• Ruy Lopez, Berlin defence, Trifunovic variation
  1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 d5
• Ruy Lopez, Berlin defence, Minckwitz variation
  1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. dxe5
• Ruy Lopez, Berlin defence, Rosenthal variation
  1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 a6