Chess puzzle (Checkmate)
Moves: 1. Nf3 Nf6 2. d4 g6 3. Nc3 Bg7 4. Bg5 O-O 5. e3 d6 6. Bc4 e6 7. Qd3 Nc6 8. Bb5
Qd7 9. a3 a6 10. Bxc6 bxc6 11. O-O-O Rb8 12. Ne4 Nxe4 13. Qxe4 d5 14. Qf4 c5
15. dxc5 Qb5 16. b4 a5 17. Nd4 Qa6 18. b5 Qa7 19. Nc6 Qxc5 20. Nxb8 Qxa3+ 21.
Kd2 Qc3+ 22. Ke2 Qxc2+ 23. Rd2 Qb3 24. Qxc7 Qxb5+ 25. Kf3 Bb7 26. Rc1 d4+ 27.
e4 Qb3+ 28. Kg4 h5+ 29. Kh4 Bxe4 30. f3 Qd5 31. Rc5 Qb3 32. Qf4 Rxb8 33. fxe4
a4 34. Rcc2 a3 35. Ra2 Ra8 36. Bf6 Rc8 37. Bxg7 Kxg7 38. Qe5+ Kh6 39. Qxd4 *
Position (FEN): 2r5/5p2/4p1pk/7p/3QP2K/pq6/R2R2PP/8 b - - 0 39
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1124
Best move: g5#