1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g8f6  5. d2d3 Probably Ruy Lopez variations are Carlsen's biggest specialties in openings, having played them with both colors in the most important tournaments, including world championships. 5... b7b5  6. a4b3  6... f8e7  7. a2a4  7... b5b4 7...Bb7 and 7...Rb8 are also possible. 8. e1g1  8... e8g8  9. b1d2  9... d7d6  10. c2c3 Carlsen had tried this line before in two games, one rapid and one blitz. 10... a8b8  11. f1e1  11... c6a5 