Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bf5 7. O-O Be7 8. c4
O-O 9. Nc3 Nc6 10. cxd5 Nxc3 11. bxc3 Qxd5 12. Rb1 Bxd3 13. Qxd3 b6 14. Rb5 Qd7
15. Rh5 g6 16. Rh3 Bf6 17. Bh6 Rfe8 18. Ng5 Bxg5 19. Bxg5 Qf5 20. Qg3 Re4 21.
Be3 Rg4 22. Qxc7 Rc8 23. Qb7 Kg7 24. Rg3 Rxg3 25. fxg3 Qe6 26. Rxf7+ Qxf7 27.
Qxc8 Na5 28. Qd8 Qxa2 29. Qe7+ Kg8 30. Qxa7 Qb1+ 31. Kf2 Qc2+ 32. Kf3 Qf5+ 33.
Bf4 Qd3+ 34. Kf2 Qc2+ 35. Ke1 Qxc3+ 36. Bd2 Qxd4 37. Qb8+ Kf7 38. Qc7+ Ke6 39.
Qc8+ Kd5 40. Qd7+ Kc4 41. Qa4+ Kd3 42. Qa3+ Kc2 43. Qa2+ Qb2 44. Qa4+ Nb3 *
Position (FEN): 8/7p/1p4p1/8/Q7/1n4P1/1qkB2PP/4K3 w - - 16 45
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1640
Best move: Qe4#