Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nc3 a6 3. g4 b5 4. Bg2 Bb7 5. Nh3 e6 6. O-O h5 7. g5 Ne7 8. d3 Ng6
9. f4 Nc6 10. f5 Nge5 11. g6 fxg6 12. fxe6 dxe6 13. Nf4 Qd7 14. Bh3 Nd8 15.
Ncd5 Bd6 16. Nb6 Qe7 17. Nxa8 Bxa8 18. Qe2 Ndf7 19. Qg2 g5 20. Nxe6 g4 21.
Nxg7+ Kf8 22. Nf5 Qe6 23. Nxd6 Qxd6 24. Bf4 gxh3 25. Qxh3 Qd7 26. Qxd7 Nxd7 27.
a4 Bc6 28. axb5 axb5 29. Ra7 Ke7 30. Bg3 Rg8 31. Kf2 Ke6 32. Ke3 Nfe5 33. Ra6
Kd6 34. Rf5 Re8 35. c3 Kc7 36. Rxh5 Kb7 37. Ra1 c4 38. d4 Ng4+ 39. Kd2 Rxe4 40.
Re1 Ndf6 41. Rxe4 Nxe4+ 42. Kc2 Nef6 43. Rg5 Be4+ 44. Kc1 Ne3 45. h4 Ned5 46.
h5 Kc6 47. h6 Nh7 48. Rg7 Ndf6 49. Be5 Kd5 50. Rb7 Kc6 51. Rb8 Bd3 52. Kd2 Ne4+
53. Ke3 Nef6 54. Kf4 Nd5+ 55. Kg4 Be2+ 56. Kf5 Bd3+ 57. Ke6 *
Position (FEN): 1R6/7n/2k1K2P/1p1nB3/2pP4/2Pb4/1P6/8 b - - 20 57
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1278
Best move: Ng5#