Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Bd3 O-O 8. Qc2
Nbd7 9. Nge2 Re8 10. O-O Nf8 11. f3 Ng6 12. e4 Nh5 13. Bxe7 Qxe7 14. e5 Nhf4
15. Nxf4 Nxf4 16. Bxh7+ Kh8 17. Bf5 Qg5 18. Bxc8 Raxc8 19. Rae1 Re6 20. Kh1 Rg6
21. g3 Nh3 22. f4 Qg4 23. Nd1 Qh5 24. Ne3 Rh6 25. Re2 c5 26. dxc5 b6 27. b4
bxc5 28. bxc5 Rxc5 29. Qxc5 Qxe2 30. Qc8+ Kh7 31. Qc2+ Qxc2 32. Nxc2 Rc6 33.
Nd4 Rc4 34. Nf3 Rc2 35. f5 Rxa2 36. e6 fxe6 37. fxe6 Re2 38. Nd4 Re4 39. Rf8
Ng5 40. Rf4 Re1+ 41. Kg2 Nxe6 42. Rh4+ Kg6 43. Nf3 Re2+ 44. Kh3 a5 45. Ra4 Re3
46. Nh4+ Kg5 47. Rxa5 *
Position (FEN): 8/6p1/4n3/R2p2k1/7N/4r1PK/7P/8 b - - 0 47
Black to move.
Themes: Pin Endgame Mate in 1 
Puzzle rating: 1127
Best move: Nf4#