Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. c3 a6 6. Bd3 e5 7. a4 g6 8. Bc2
Bg7 9. d3 h6 10. Be3 Nge7 11. d4 cxd4 12. cxd4 O-O 13. Nc3 Rc8 14. d5 Nb4 15.
Bb1 a5 16. Nb5 Bxb5 17. axb5 f5 18. Bd2 f4 19. Bxb4 axb4 20. Bd3 g5 21. Nd2 Ng6
22. Qg4 Rc7 23. Nc4 Qe7 24. Ra7 Re8 25. Rfa1 Kh7 26. h3 Nf8 27. Qf5+ Kh8 28. b6
Rd7 29. Na5 Nh7 30. Nc6 Qf7 31. Qxf7 Rxf7 32. Nxb4 h5 33. Bb5 Ref8 34. Bc6 g4
35. hxg4 hxg4 36. Rxb7 g3 37. fxg3 fxg3 38. Rxf7 Rxf7 39. b7 Bh6 40. b8=Q+ Kg7
41. Qd8 Be3+ 42. Kh1 Bg5 43. Qe8 Rf6 44. Ra7+ Kh6 45. Qg8 *
Position (FEN): 6Q1/R6n/2Bp1r1k/3Pp1b1/1N2P3/6p1/1P4P1/7K b - - 10 45
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 399
Best move: Rf1#