Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. cxd5 exd5 5. g3 Bb4+ 6. Nc3 O-O 7. Bg2 c6 8.
O-O Bf5 9. Nh4 Be6 10. Qc2 Nbd7 11. Nf3 Re8 12. Bf4 Bxc3 13. bxc3 Nb6 14. Nd2
Nc4 15. Nxc4 dxc4 16. e4 b5 17. a4 a6 18. Bg5 Bd7 19. e5 h6 20. Bxf6 gxf6 21.
axb5 axb5 22. Rxa8 Qxa8 23. f4 Qd8 24. Ra1 c5 25. Bd5 Kg7 26. Ra8 Qe7 27. Ra7
Qd8 28. Bxf7 Kxf7 29. Qh7+ Ke6 30. Rxd7 Re7 31. f5+ Kxd7 32. e6+ Kc7 33. Qxh6
cxd4 34. Qxf6 d3 35. Qe5+ Qd6 36. Qe3 Kb7 37. Kf2 Qb6 38. g4 d2 39. Qxb6+ Kxb6
40. Ke2 Kc6 41. Kxd2 Kd6 42. Ke3 Ke5 43. h4 Rh7 44. h5 Re7 45. Kf3 Rc7 46. h6
b4 47. cxb4 c3 48. Ke2 c2 49. h7 c1=Q 50. h8=Q+ Ke4 51. Qa8+ Rc6 52. e7 Qc2+
53. Kf1 Kf3 54. Qa3+ Rc3 55. Qxc3+ Qxc3 56. e8=Q Qc4+ 57. Ke1 *
Position (FEN): 4Q3/8/8/5P2/1Pq3P1/5k2/8/4K3 b - - 2 57
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 1527
Best move: Qc1#