Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Bc4 e6 3. Nc3 a6 4. a3 b5 5. Ba2 Nc6 6. d3 Nf6 7. Nge2 Be7 8. h3 d5
9. exd5 exd5 10. g4 d4 11. Ne4 Nxe4 12. dxe4 c4 13. Ng3 Bh4 14. Nf5 Bxf5 15.
gxf5 O-O 16. Qg4 Ne5 17. Qg2 d3 18. Bf4 Bf6 19. O-O-O c3 20. Bxe5 d2+ 21. Kb1
Bxe5 22. Rhg1 Kh8 23. f4 Bd4 24. Rgf1 b4 25. a4 b3 26. Bxb3 Rb8 27. Rf3 Qa5 28.
Rd3 Rfd8 29. e5 Qc5 30. Ka2 Rxb3 31. cxb3 c2 32. R3xd2 cxd1=Q 33. Rxd1 Rb8 34.
Rd3 g6 35. f6 Be3 36. Qe4 Bf2 37. Rd5 Qb6 38. Qd3 h5 39. Rd6 Qb4 40. Rxa6 Bd4
41. Rd6 Bc5 42. Rd7 Qxf4 43. Rxf7 Qf5 44. Qd5 Bf8 45. Rd7 Qxh3 46. f7 Qg4 47.
e6 Bg7 48. e7 Qb4 49. e8=Q+ Kh7 50. Qxb8 Qxb8 51. f8=Q Qxf8 52. Qb7 Qf6 53. a5
*
Position (FEN): 8/1Q1R2bk/5qp1/P6p/8/1P6/KP6/8 b - - 0 53
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 634
Best move: Qxb2#