Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bc5 7. Nd6+ Ke7 8.
Nxc8+ Rxc8 9. Bd3 h5 10. Bg5 Qa5 11. Qd2 Bb4 12. f4 Nd4 13. O-O d6 14. Kh1 h4
15. a3 Bxc3 16. bxc3 h3 17. e5 hxg2+ 18. Qxg2 Qxc3 19. Qxb7+ Rc7 20. Qg2 Nxc2
21. Bxc2 Qxc2 22. Rf2 Qc3 23. Rd1 dxe5 24. fxe5 Qxe5 25. Bf4 Qc5 26. Bd6+ Qxd6
27. Rxd6 Kxd6 28. Qg3+ e5 29. Qxg7 Rc1+ 30. Kg2 Ne4 31. Qxh8 Nxf2 32. Qh6+ Kd5
33. Qxc1 Ne4 34. Qc8 Nd6 35. Qa8+ Kd4 36. Qxa7+ Ke4 37. a4 f5 38. a5 f4 39. a6
f3+ 40. Kf2 Kf4 41. Qb8 Ne4+ 42. Kf1 f2 43. Qxe5+ Kf3 44. a7 *
Position (FEN): 8/P7/8/4Q3/4n3/5k2/5p1P/5K2 b - - 0 44
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 605
Best move: Nd2#