Chess puzzle (Checkmate)
Moves: 1. c4 c5 2. g3 Nc6 3. Nc3 e5 4. Bg2 d6 5. Nf3 Bf5 6. O-O Nf6 7. d3 Be7 8. a3
O-O 9. Rb1 e4 10. Nh4 Bg6 11. Nxg6 fxg6 12. Nxe4 Nxe4 13. Bxe4 Bf6 14. b4 cxb4
15. axb4 a6 16. b5 axb5 17. cxb5 Nd4 18. Bxb7 Rb8 19. Bd5+ Kh8 20. Bf4 Rxb5 21.
Rxb5 Nxb5 22. Qb3 Nd4 23. Qb4 Nxe2+ 24. Kh1 Nxf4 25. Qxf4 Be5 26. Qb4 Qf6 27.
f4 Bd4 28. Re1 Bc5 29. Qb7 h6 30. Re7 Qa1+ 31. Kg2 Qg1+ 32. Kh3 Qf1+ 33. Bg2
Qa1 34. Qe4 Kh7 35. Re8 Rxe8 36. Qxe8 Qf6 37. Qc6 Qe6+ 38. g4 h5 39. Qe4 *
Position (FEN): 8/6pk/3pq1p1/2b4p/4QPP1/3P3K/6BP/8 b - - 1 39
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 896
Best move: Qxg4#