Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. d4 Ngf6 6. Bg5 Be7 7. Bxf6 Nxf6
8. Ng3 O-O 9. Bd3 c5 10. O-O b6 11. dxc5 Bxc5 12. Ne4 Bb7 13. Nxc5 bxc5 14. Qe2
Qb6 15. b3 Nd5 16. Qe4 Nf6 17. Qh4 Bxf3 18. gxf3 Rad8 19. Rae1 Rd4 20. Qg3 Qa5
21. Re5 h6 22. Kh1 Rd5 23. Rg1 Ne8 24. Rxd5 exd5 25. Qe5 Qd8 26. Qf5 Nf6 27.
Qh3 Kh8 28. Qf5 Qd7 29. Qf4 Qe6 30. Qd2 Qe5 31. Re1 Qd4 32. c3 Qh4 33. Bf5 Qh5
34. Qd3 Rd8 35. h4 Qxh4+ 36. Kg1 Qg5+ 37. Kf1 c4 38. bxc4 Nh5 39. cxd5 Nf4 40.
Qe4 *
Position (FEN): 3r3k/p4pp1/7p/3P1Bq1/4Qn2/2P2P2/P4P2/4RK2 b - - 2 40
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 823
Best move: Qg2#