What is the fastest way for White to win?

ICC 30 0, Internet Chess Club
Analyis of yoshi (2013) vs. fiddler (1813)

8 7 6 5 4 3 2 1 a b c d e f g h +8

(white to move) 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 O-O 6. e3 b6 7. cxd5 Nxd5 8. Nxd5 Qxd5 9. a3 Bb7 10. Bxc7 Nd7 11. Rc1 Rac8 12. Bd3 Qh5 13. O-O Nf6 14. Be2 Qa5 15. Qd2 Qxd2 16. Nxd2 Nd5 17. Bg3 Nf6 18. Bf3 Bxf3 19. Nxf3 Ne4 20. Rfd1 f6 21. Kf1 Nxg3+ 22. hxg3 Kf7 23. Ke2 Bd6 24. Rxc8 Rxc8 25. Kd2 g5 26. Rc1 Rxc1 27. Kxc1 g4 28. Nd2 e5 29. dxe5 Bxe5 30. b3 f5 31. Kc2 Ke6 32. Kd3 Kd5 33. e4+ fxe4+ 34. Nxe4 b5 35. Ng5 h6 36. Nf7 h5 37. Nxe5 Kxe5 38. a4 bxa4 39. bxa4 Kd5 40. f4 gxf3 e.p. 41. gxf3 a6 42. a5 Ke5 43. Ke3 Kf5 44. Kd4 Kg5 45. Kc5 Kf5 46. Kb6 Ke5 47. Kxa6 Kd4 48. Kb7 Ke3 49. a6 Kxf3 50. a7 Kxg3 51. a8=Q h4 52. Kc6 h3 53. Kd5 Kg2 54. Ke4 h2 55. Ke3+ Kg1 56. Qa2 h1=N 57. Kf3

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Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight