Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Bc5 3. Bc4 Nc6 4. Nc3 Nge7 5. d3 Na5 6. Nxe5 Nxc4 7. Nxc4 O-O
8. h3 d5 9. exd5 Nxd5 10. Nxd5 Qxd5 11. O-O h6 12. Be3 Be7 13. c3 Be6 14. Qe2
Rad8 15. Rad1 Rfe8 16. b3 b5 17. Nb2 Qb7 18. c4 a6 19. d4 c6 20. c5 Bd5 21. Nd3
a5 22. Ne5 f6 23. Ng6 Rd7 24. Qg4 Kh7 25. Qf5 Kg8 26. Nxe7+ Rdxe7 27. Qg6 Bf7
28. Qg3 Kh7 29. Rfe1 Qd7 30. Bd2 Qxd4 31. Bxa5 Rxe1+ 32. Rxe1 Rxe1+ 33. Bxe1
Qa1 34. Qd3+ Bg6 35. Qd2 Be4 36. b4 Qb1 37. a3 Bd5 38. Qe3 f5 39. f4 Qa2 40. g4
*
Position (FEN): 8/6pk/2p4p/1pPb1p2/1P3PP1/P3Q2P/q7/4B1K1 b - - 0 40
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 635
Best move: Qg2#