Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Nd2 d6 5. Ngf3 Nbd7 6. Be2 O-O 7. O-O b6 8. c3
Bb7 9. Qc2 Re8 10. e4 e5 11. Bg5 h6 12. Bxf6 Bxf6 13. d5 Nc5 14. Bb5 Re7 15. b4
a6 16. Bc6 Bxc6 17. bxc5 Bb5 18. c4 Bd7 19. c6 Bc8 20. Rab1 Re8 21. Rb2 Kh7 22.
Rfb1 Rh8 23. Qd3 Kg8 24. Nb3 g5 25. Qe3 g4 26. Nfd2 h5 27. f3 Bg5 28. Qc3 f6
29. fxg4 hxg4 30. Nf1 f5 31. exf5 Bxf5 32. Re1 Qf8 33. Ng3 Bf4 34. Rf2 Qf7 35.
Nd2 Rf8 36. Nde4 Qh7 37. Kf1 Qxh2 38. Qa3 a5 39. Nxf5 Rxf5 40. Nxd6 Rf8 41. Ne4
Rh7 42. g3 Qh3+ 43. Ke2 Bh6 44. Nf6+ Kh8 45. Nxh7 Rxf2+ 46. Kxf2 Qh2+ 47. Kf1
Qh1+ 48. Ke2 Qg2+ 49. Kd1 *
Position (FEN): 7k/2p4N/1pP4b/p2Pp3/2P3p1/Q5P1/P5q1/3KR3 b - - 6 49
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 750
Best move: Qd2#