Chess puzzle (Advantage)
Moves: 1. Nf3 e6 2. c4 c5 3. e3 h6 4. Nc3 Nf6 5. Bd3 Nc6 6. a3 d5 7. cxd5 exd5 8. Bb5
Bd7 9. b4 a6 10. Ba4 cxb4 11. Bxc6 Bxc6 12. axb4 Bxb4 13. Qb3 a5 14. Ba3 O-O
15. Bxb4 axb4 16. Rxa8 Qxa8 17. Qxb4 Qa1+ 18. Nd1 Re8 19. O-O d4 20. Nxd4 Be4
21. Nc3 Qa8 22. Nxe4 Nxe4 23. Rb1 Rb8 24. Ne6 Nf6 25. Nc7 Qa2 26. Qb2 Qc4 27.
Nb5 Qg4 28. h3 Qg5 29. Nd6 b5 30. Qd4 Rd8 31. Ne4 Nxe4 32. Qxe4 Rxd2 33. Qe8+
Kh7 34. Qxf7 Rd5 35. Kh2 Rf5 36. f4 Rxf7 37. fxg5 Rb7 38. gxh6 Kxh6 39. g3 Kg5
40. Kg2 Kf5 41. Kf2 g5 42. Kf3 b4 43. e4+ Ke5 44. h4 gxh4 45. gxh4 Kd4 46. Kf4
Kc3 47. e5 b3 48. e6 Kc2 49. Re1 b2 50. e7 Rxe7 51. Rxe7 *
Position (FEN): 8/4R3/8/8/5K1P/8/1pk5/8 b - - 0 51
Black to move.
Themes: Advanced Pawn Endgame  Promotion
Puzzle rating: 632
Best move: b1=Q