ECO C65
12 named openings and variations are classified as C65. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.
- Ruy Lopez: Berlin DefenseC651. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6
- Ruy Lopez: Berlin Defense, Anti-Berlin VariationC651. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3
- Ruy Lopez: Berlin Defense, Anti-Berlin Variation, Anderssen VariationC651. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. Bxc6+
- Ruy Lopez: Berlin Defense, Anti-Berlin Variation, Duras VariationC651. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. c4
- Ruy Lopez: Berlin Defense, Anti-Berlin Variation, Kaufmann VariationC651. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Be3
- Ruy Lopez: Berlin Defense, Anti-Berlin Variation, Mortimer TrapC651. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Ne7 5. Nxe5 c6
- Ruy Lopez: Berlin Defense, Anti-Berlin Variation, Mortimer VariationC651. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Ne7
- Ruy Lopez: Berlin Defense, Beverwijk VariationC651. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5
- Ruy Lopez: Berlin Defense, Fishing Pole VariationC651. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Ng4
- Ruy Lopez: Berlin Defense, Nyholm AttackC651. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d4 exd4 5. O-O
- Ruy Lopez: Classical Variation, Zukertort GambitC651. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 5. c3
- Ruy Lopez: Halloween AttackC651. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nxe5