So Defends Against a King's Gambit From Adhiban

[Event "79th Tata Steel Chess 2017-Masters"]
[Site "Wijk aan Zee"]
[Date "2017.01.20"]
[Round "6"]
[White "Adhiban, Baskaran"]
[Black "So, Wesley"]
[Result "1/2-1/2"]
[Annotator "ChessBase"]
[BlackElo "2808"]
[Classes "0"]
[ECO "C33"]
[GameID "0"]
[Remark ""]
[Source "ChessBase"]
[WhiteElo "2653"]

{Game analysis^13 ^10 Processor: AMD A10-5757M APU with Radeon(tm) HD Graphics
  (@2.50GHz)^13 ^10 Engine(s): Deep Rybka 2.3.2a x64^13 ^10 Analysis time:
0:20:43} 1. e4 {0} 1... e5 {11} 2. f4 {0}{[%t Val] (} 2... exf4 {44} 3. Bc4 {0}
 3... d5 {405}{[%t Val] 3} 4. Bxd5 {0} 4... Nf6 {8} 5. Nc3 {0} 5... Nxd5 {566}
{[%t Shrt] N} (5... Bb4 6. Nf3 O-O (6... Bxc3 7. dxc3 c6 8. Bb3 Qxd1+ 9. Kxd1
Nh5 10. Ke2 {...1-0, Short Nigel D 2687  - Bacrot Etienne 2718 , Internet 11/
7/2004 Ch Europe (blitz) (Internet) (KO-system)})7. O-O Bxc3 8. dxc3 c6 9. Bc4
Qb6+ 10. Kh1 {...1-0, Fischer Robert J 2780  - Nyman W, Cicero 1964 Simultan}
)(5... Nc6 6. Nf3 Nxd5 7. Nxd5 g5 8. d4 Bg7 9. h4 g4 10. Ne5 {...1-0, Fischer
Robert J 2780  - Cunningham Tom, Houston 1964 Simultan}) 6. Nxd5 {0} 6... Bd6
{8} 7. Nf3 {0} 7... O-O {17} 8. d4 {0} 8... Re8 { 905}{?!}{[%t Val] @} (8...
g5 {!?} 9. e5 Be7 10. c4 Nc6 11. O-O f6 12. Re1 fxe5 13. Nxe5 Bd6 14. h4
{+0.00}) 9. e5 {4} 9... c6 {7} 10. Nxf4 {54} 10... f6 {38} 11. Nd3 {712} (11.
Qd3 Nd7 12. O-O fxe5 13. Nh5 Nc5 14. dxc5 {+0.71}) 11... fxe5 {1654} 12. dxe5
{2} 12... Qb6 {249} 13. Qe2 {901} 13... Bf5 {12} (13... Nd7 14. Bf4 Nc5 15.
O-O-O Bf5 16. Nxc5 Bxc5 17. a3 Qb5 18. Qxb5 cxb5 {+0.49}) 14. Be3 {197} 14...
Qa5+ {25} 15. c3 {497} 15... Bc7 { 901} 16. O-O {196}{[%t Val] <} (16. Nc5 Nd7
17. Qc4+ Kh8 18. Nxb7 Qd5 19. Qxd5 cxd5 20. Nc5 Bxe5 21. O-O-O Bxc3 {+0.71})
16... Qa6 {14} 17. Rad1 {244} 17... Nd7 {7} 18. Bd4 {1568}{[%t Val] 2} (18.
Rd2 g6 19. Qd1 Qc4 20. a4 Bxd3 21. Rxd3 Nxe5 22. Nxe5 Bxe5 23. Bh6 a6 {+0.36})
18... c5 {100} 19. Bf2 {23} 19... Nxe5 {177} 20. Nfxe5 {23} 20... Bxe5 {284}
21. Qf3 {18}{[%t Val] ,} 21... Be4 {27} 22. Qh3 {35 } 22... Bxd3 {166}{[%t
Val] 0} 23. Qxd3 {115} 23... Qxa2 {43} 24. Bxc5 {621} 24... Qxb2 {40} 25. Bxa7
{239} 25... Bxc3 {357} 26. Bf2 {525} 26... Be5 {251} 27. Rb1 {86} 27... Qa2 {5}
 28. Rxb7 {9} 28... Rf8 {33} 29. Qb3+ {173}{[%t Val] -} 29... Qxb3 {47} 30.
Rxb3 {4} 30... Ra2 {3} 31. Rf3 {184}{[%t Val] %} (31. g3 Rf5 32. Kg2 Bd4 33.
Rf3 Rf7 {-0.17}) 31... Rxf3 {6} 32. gxf3 { 5} 32... Kf7 {4} 33. Bg3 {45} 33...
Bd4+ {5} 34. Kh1 {14} 34... Rd2 {30}{[%t Val] (} 35. Bf4 {43} 35... Re2 {4}
36. Rd1 {8} 36... Bc3 {39} 37. Rd3 {11} 37... Bb4 {32} 38. Rd4 {135} 38... Bc5
{11} 39. Rd2 {3} 1/2-1/2
The final position