1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g8f6  5. e1g1  5... f8e7  6. f1e1  6... b7b5  7. a4b3  7... d7d6  8. c2c3  8... e8g8  9. h2h3  9... c6b8 The good old Breyer Variation of the Ruy Lopez remains popular to this day. At one point it was one of Magnus Carlsen's favorite defenses. 10. d2d4  10... b8d7  11. b1d2  11... c8b7  12. b3c2 