Chess puzzle (Checkmate)
Moves: 1. d4 c5 2. d5 d6 3. c4 Nf6 4. Nc3 g6 5. e4 Bg7 6. Be2 O-O 7. f4 Nbd7 8. Nf3 a6
9. a4 Rb8 10. O-O Ne8 11. Qc2 Nc7 12. a5 e6 13. b3 exd5 14. cxd5 Re8 15. Bb2
Qe7 16. Bd3 Nb5 17. Nxb5 Bxb2 18. Nxd6 Bxa1 19. Nxe8 Bd4+ 20. Nxd4 cxd4 21. Nc7
Nf8 22. e5 Bd7 23. Rc1 Rc8 24. Qc5 Qd8 25. Qd6 Qh4 26. g3 Qh3 27. Bf1 Qg4 28.
Qc5 d3 29. Bxd3 Qf3 30. Bf1 h5 31. Bg2 Qxb3 32. Qb6 Bb5 33. d6 Nd7 34. Qf2 Bd3
35. Qe3 Qb2 36. Bxb7 Rb8 37. Bc6 Rb3 38. Bxd7 Be4 39. Qxe4 Qxc1+ 40. Kg2 Rb2+
41. Kh3 Qd2 42. Qh1 Rc2 43. Ne8 Qf2 44. Nf6+ Kg7 45. Ne4 Qe2 46. Ng5 Rd2 47.
Bc6 *
Position (FEN): 8/5pk1/p1BP2p1/P3P1Np/5P2/6PK/3rq2P/7Q b - - 15 47
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 923
Best move: Qg4#