C66
Ruy Lopez: Bishop Retreat
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. Re1 Bd7 6. c3 a6 7. Ba4 b5 8. Bc2 Be7 9. d4 exd4 10. cxd4 Opening moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. Re1 Bd7 6. c3 a6 7. Ba4 b5 8. Bc2 Be7 9. d4 exd4 10. cxd4. This position is classified under ECO code C66.
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