Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Nf6 5. Bd3 Bd6 6. O-O O-O 7. Bg5 Bg4 8.
h3 Bh5 9. Nbd2 c6 10. c3 Nbd7 11. Qc2 Qc7 12. Rfe1 Rfe8 13. a4 Rac8 14. a5 a6
15. b4 Bf4 16. Bxf4 Qxf4 17. Rxe8+ Rxe8 18. Re1 Rxe1+ 19. Nxe1 Qd6 20. Nb3 Qe6
21. Kf1 h6 22. Bf5 Qe7 23. Nd3 Ne4 24. Bxd7 Qxd7 25. Ndc5 Qe7 26. Nxe4 dxe4 27.
Nc5 f5 28. Qb3+ Bf7 29. Qd1 Bc4+ 30. Kg1 e3 31. fxe3 Qxe3+ 32. Kh1 Qxc3 33. Qh5
Qc1+ 34. Kh2 Qf4+ 35. Kh1 Bf7 36. Qd1 Bd5 37. Nxb7 Qg3 38. Qe2 Be4 39. Kg1 Kh7
40. Nc5 Qf4 41. Nxa6 Qc1+ 42. Kh2 Qf4+ 43. Kg1 Qg3 44. Nc5 Qf4 45. a6 Qc1+ 46.
Kh2 Qf4+ 47. Kg1 Bd5 48. a7 Qc1+ 49. Kh2 Qa1 50. Qa6 Qb2 51. a8=Q *
Position (FEN): Q7/6pk/Q1p4p/2Nb1p2/1P1P4/7P/1q4PK/8 b - - 0 51
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 604
Best move: Qxg2#