Chess puzzle (Advantage)
Moves: 1. c4 e6 2. g3 Nf6 3. Bg2 Bb4 4. e3 Nc6 5. Ne2 Ne5 6. b3 Nd3+ 7. Kf1 Ng4 8. Nf4
Ngxf2 9. Qf3 Qf6 10. Nc3 Nxh1 11. Nxd3 Bxc3 12. dxc3 Qxc3 13. Nb2 Nxg3+ 14.
Qxg3 Qf6+ 15. Qf2 Qxf2+ 16. Kxf2 c6 17. Nd3 d6 18. Bb2 f6 19. Bh3 Bd7 20. Rg1
Rg8 21. Bxf6 Kf7 22. Bc3 Rad8 23. Kg3 e5 24. Rf1+ Ke8 25. Bg2 Be6 26. c5 Ke7
27. cxd6+ Kxd6 28. Bxe5+ Ke7 29. Nc5 Rd2 30. a4 b6 31. Ne4 Rd3 32. Bf4 Bxb3 33.
Ng5 h6 34. Nf3 Bxa4 35. Ne5 Rd2 36. Nxc6+ Bxc6 37. Bxc6 Rc8 38. Bb7 Rcc2 39.
Ra1 a5 40. Rb1 g5 41. Be5 h5 42. Rxb6 h4+ 43. Kg4 Re2 44. Bd4 Rxh2 45. Kxg5 h3
46. Rh6 a4 47. Kg4 a3 48. Be4 Rce2 49. Bf3 Re1 50. Rxh3 Rxh3 51. Kxh3 a2 52.
Bd5 Rxe3+ 53. Bxe3 *
Position (FEN): 8/4k3/8/3B4/8/4B2K/p7/8 b - - 0 53
Black to move.
Themes: Advanced Pawn Endgame  Promotion
Puzzle rating: 651
Best move: a1=Q