Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. Nc3 e5 8.
Qd3 Nf6 9. Bg5 Be7 10. Bxf6 Bxf6 11. O-O-O Be7 12. Nd5 Bxd5 13. Qxd5 Qb6 14.
Rd2 Rc8 15. Kb1 O-O 16. Rhd1 Rc5 17. Qd3 Rfc8 18. c3 a5 19. Rc2 a4 20. a3 Rb5
21. Ka1 Rb3 22. Nd2 Rb5 23. Nc4 Qc5 24. Ne3 Rb3 25. Nd5 Bf8 26. Qe3 Qb5 27. h4
Rc4 28. h5 h6 29. g4 f6 30. Qd3 Rxa3+ 31. bxa3 Qb3 32. Rdd2 Qxa3+ 33. Kb1 b5
34. Ra2 Qc5 35. Rdb2 a3 36. Rb3 b4 37. Nxb4 d5 38. Nxd5 Bd6 39. Raxa3 Qc6 40.
Ra2 Kh7 41. f3 Rc5 42. Kc2 Rc4 43. Ra1 Rc5 44. Rd1 Bf8 45. Rd2 Qa8 46. Qe3 Qa2+
47. Kd3 Qa6+ 48. Kc2 Ra5 49. Qb6 Ra2+ 50. Kd1 *
Position (FEN): 5b2/6pk/qQ3p1p/3Np2P/4P1P1/1RP2P2/r2R4/3K4 b - - 18 50
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1467
Best move: Qf1#