Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Nf3 g6 3. Bg5 d5 4. e3 Bg7 5. Be2 O-O 6. O-O b6 7. Nbd2 Bb7 8. a4
a6 9. h3 Nbd7 10. b4 Ne4 11. Nxe4 dxe4 12. Nd2 Qe8 13. f3 e5 14. c3 exd4 15.
cxd4 h6 16. Bf4 g5 17. Bg3 exf3 18. Bxf3 Qxe3+ 19. Bf2 Bxf3 20. Nxf3 Qe6 21.
Rc1 Rac8 22. d5 Qd6 23. Qb3 Ne5 24. Nd4 Rfd8 25. Nf5 Qd7 26. Bd4 f6 27. Bxe5
fxe5 28. Rc6 Rf8 29. Re6 Rce8 30. g4 Kh7 31. Qc2 Rxe6 32. dxe6 Qxe6 33. Ne7+
Kh8 34. Ng6+ Kg8 35. Nxf8 Bxf8 36. Qxc7 Bxb4 37. Qd8+ Kg7 38. Rd1 Bc5+ 39. Kg2
Kg6 40. Qc7 Qa2+ 41. Kh1 Qxa4 42. Re1 Qc4 43. Qxe5 Qb3 44. Qf5+ Kg7 45. Qd7+
Qf7 46. Qd1 a5 47. Rf1 Qb7+ 48. Kh2 Qc7+ 49. Kg2 Qc6+ 50. Rf3 a4 51. Qa1+ Kg6
52. Qe5 a3 53. Qf5+ Kg7 54. Kh2 Qe8 55. Kg2 Qe2+ 56. Kg3 Qe1+ 57. Kg2 *
Position (FEN): 8/6k1/1p5p/2b2Qp1/6P1/p4R1P/6K1/4q3 b - - 9 57
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1100
Best move: Qg1#