Chess puzzle (Checkmate)
Moves: 1. c4 c6 2. Nc3 e6 3. d4 d5 4. Nf3 Nf6 5. e3 Bb4 6. Bd3 O-O 7. O-O a6 8. Qc2 b5
9. cxb5 cxb5 10. a3 Be7 11. e4 Bb7 12. e5 Ne4 13. Nxe4 dxe4 14. Bxe4 Bxe4 15.
Qxe4 Ra7 16. h4 h6 17. Be3 Rd7 18. g3 Nc6 19. Rfd1 Na5 20. Qg4 Kh7 21. Kg2 Nc4
22. b3 Nxe3+ 23. fxe3 Qb6 24. Rac1 Rc7 25. Nd2 Rfc8 26. Rxc7 Qxc7 27. Ne4 Qc2+
28. Nf2 Rc3 29. d5 exd5 30. e6 f5 31. Qd4 Qxb3 32. Qxd5 Qxd5+ 33. Rxd5 Rxe3 34.
Rxf5 Rxe6 35. Kf3 Bxa3 36. Ne4 Be7 37. Rf7 b4 38. Nd2 Rf6+ 39. Rxf6 Bxf6 40.
Nb3 Kg6 41. Ke4 Kh5 42. Kf3 Bd8 43. Nc5 a5 44. Ne6 Bf6 *
Position (FEN): 8/6p1/4Nb1p/p6k/1p5P/5KP1/8/8 w - - 2 45
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 992
Best move: Nf4#