Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 e6 3. Bf4 Nf6 4. e3 Bd6 5. Bg3 O-O 6. Nbd2 b6 7. c3 Bb7 8. Bd3
Ne4 9. Bc2 f5 10. Ne5 Nd7 11. Nxe4 fxe4 12. Qg4 Qe7 13. f4 Bxe5 14. fxe5 Rf5
15. O-O-O c5 16. Rhf1 Raf8 17. Rf4 Ba6 18. Bb3 Rg5 19. Qh4 Be2 20. Re1 Bd3 21.
Rxf8+ Nxf8 22. Bf4 h6 23. Bxg5 hxg5 24. Qg3 cxd4 25. exd4 Ng6 26. Qe3 Nf4 27.
Qd2 Bb5 28. Bc2 Bc4 29. g3 Nd3+ 30. Bxd3 Bxd3 31. Rg1 Qd7 32. b3 Qc6 33. Kb2 a5
34. Qxg5 a4 35. Rc1 Qb5 36. Qd8+ Kh7 37. Qh4+ Kg8 38. Qh5 Bc4 39. Qd1 Bd3 40.
Ka3 Be2 41. bxa4 Qa6 42. Qb3 b5 43. Qb4 bxa4 44. Qxa4 Qd3 45. Qe8+ Kh7 46. Qa4
Qd2 47. Qc2 Qe3 48. Kb2 Bd3 49. Qg2 Qg5 50. Re1 Qd8 51. Ka1 Qa5 52. Qb2 Bc4 53.
h4 Qa4 54. Rc1 e3 55. Qb4 *
Position (FEN): 8/6pk/4p3/3pP3/qQbP3P/2P1p1P1/P7/K1R5 b - - 1 55
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 801
Best move: Qxa2#