1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... d7d5  4. b1c3  4... c7c5  5. c4d5  5... c5d4 The ultra-drawish variation, which So regularly uses as Black. 6. d1d4  6... e6d5  7. c1g5  7... f8e7  8. e2e3  8... e8h8  9. f1e2  9... b8c6  10. d4d3  10... h7h6  11. g5h4  11... d8b6  12. e1h1  12... f8d8  13. f1d1  13... b6b2 Black temporarily wins the pawn. 14. a1b1  14... b2a3  15. h4f6  15... e7f6  16. c3d5 White immediately gets it back, also trading the queens. 16... a3a2  17. d5f6  17... g7f6  18. f3d4 This position looks somewhat dangerous for Black, whose kingside has been torn apart.  However, So defends carefully, proving that White actually does not have much initiative. 18... c8e6  19. b1b7  19... d8d6  20. d1d2  20... a2a1  21. b7b1  21... a1a5  22. d2d1  22... c6d4  23. e3d4  23... a8d8 The black queen is ready to intervene with ...Qg5 whenever needed. 24. h2h4 However, now Mamedyarov starts overpushing. 24... a5f5  25. d3g3  25... f5g6  26. g3f4  26... g6f5 Missing the chance. 27. f4h6  27... d6d4  28. b1c1  28... f5e5  29. d1d4  29... d8d4  30. e2h5  30... d4d8 