Chess puzzle (Checkmate)
Moves: 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Nf3 Bg4 7. h3 Bh5 8. a3
Be7 9. Be2 Bf6 10. Be3 O-O 11. Nbd2 Nc6 12. d5 Bxf3 13. Nxf3 Ne5 14. Nxe5 Bxe5
15. Bd4 Qf6 16. Bxe5 Qxe5 17. Qc2 Rfe8 18. Rd1 Na4 19. Rd2 Nc5 20. O-O Re7 21.
Bf3 Rae8 22. b4 Nd7 23. Re2 Qf6 24. Rfe1 Ne5 25. Be4 Qf4 26. Bxh7+ Kh8 27. Re4
Qg5 28. R1e3 g6 29. Rg3 Qf6 30. Bxg6 Nxg6 31. Reg4 Rg8 32. Kf1 Rg7 33. Qc1 Kg8
34. c5 Qe5 35. Re3 Qh2 36. Qe1 Nf4 37. Rxf4 Qxf4 38. Rxe7 Qc4+ 39. Kg1 Qxd5 40.
cxd6 *
Position (FEN): 6k1/ppp1Rpr1/3P4/3q4/1P6/P6P/5PP1/4Q1K1 b - - 0 40
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 671
Best move: Qxg2#