Chess puzzle (Checkmate)
Moves: 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. Bc4 Nf6 5. d3 Bf5 6. h3 e6 7. Nf3 c6 8. a3
Nbd7 9. O-O Bd6 10. Re1 O-O 11. Bg5 h6 12. Bh4 Qc7 13. Ne4 Nxe4 14. dxe4 Bg6
15. Bd3 Nc5 16. Rb1 Be7 17. Bg3 Qb6 18. b4 Nxd3 19. cxd3 Rad8 20. Ne5 Bf6 21.
Nc4 Qd4 22. Rb3 b5 23. Na5 Qb6 24. Qc2 Rc8 25. Bd6 Bd4 26. Bxf8 Kxf8 27. Kf1
Qc7 28. g3 Bh5 29. Kg2 Bb6 30. Rc3 c5 31. Nb3 c4 32. dxc4 bxc4 33. Nd2 Qb7 34.
Rxc4 Rd8 35. f3 Bg6 36. a4 a5 37. b5 Qd7 38. Re2 f5 39. Rc6 Qd4 40. Rxe6 *
Position (FEN): 3r1k2/6p1/1b2R1bp/pP3p2/P2qP3/5PPP/2QNR1K1/8 b - - 0 40
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1337
Best move: Qg1#