1. e4e5 2. Nf3Nf6 3. Nc3Bb4 4. Bc4d6 5. O-OO-O 6. d3Bxc3 7. bxc3Nc6 8. Bg5Be6 9. Bd5Bxd5 10. exd5Na5 11. Re1h6 12. Bh4g5 13. Bg3Nxd5White is a pawn down but Black's pawn structure on king side is extended
14. Qd2Nc6 15. h4?!further extends blacks king side, but temporarily cramps whites pieces
15... g4 16. Nh2h5 17. Qh6Nf6!black has strong defensive resources
18. Nf1white manuevers pieces back into play in blocked position
18... Re8!anticipating Nf5
19. Ne3Re6 20. Nf5Qf8 21. Qg5+Kh7 22. d4!free space for the bishop to re-enter game
22... exd4 23. Rxe6fxe6 24. Nxd4Qf7avoids knight swap on d4
25. Ne2!white manuevers again
25... e5 26. Qe3Nd7 27. a3!crucial in restricting black queens play
27... Nc5 28. Rf1Qc4black looks for attack but with eye to defense
29. f3Rg8 30. f4!e4 31. f5Ne7 32. f6Nd5 33. Qf2Kh6 34. f7Rf8!important for Queen to regroup and restrict blacks counter play
35. Bf4+bishop finally back in play
35... Kg7 36. Bg5Ne6 37. Nd4!Nxd4 38. Bf6+!!Kh6I did not risk this playing on train, but in post analysis its the knock out move. If Nxf6 Qxf6+ 40. Kh7 cxd4 and Rf5 with Rxh5 mate
39. Bxd4c5 40. Bh8!Kh7 41. Qf5+Kxh8 42. Qxh5+Kg7 43. Qxg4+Kh7 44. Rf5Nf4to avoid Rh5+ mate
45. Qxf4Qe2 46. Rg5Qd1+ 47. Kh2Qd5black can resign here but computer plays on
48. Rxd5Kg7 49. Rg5+Kh7 50. Qf5+Kh8 51. Qf6+Kh7 52. Rh5+1-0