Chess puzzle (Checkmate)
Moves: 1. Nf3 d5 2. c4 c6 3. g3 Nf6 4. Bg2 Bg4 5. cxd5 cxd5 6. Qa4+ Qd7 7. Qxd7+ Nbxd7
8. Nc3 Rc8 9. d3 e6 10. Nb5 a6 11. Nbd4 Bd6 12. O-O Ke7 13. Bd2 Rc7 14. h3 Bh5
15. Rfc1 Rhc8 16. Rxc7 Rxc7 17. Rc1 Rxc1+ 18. Bxc1 Nc5 19. Kf1 h6 20. Ke1 Bg6
21. Nh4 Bh7 22. f4 Ncd7 23. Nhf3 Bb4+ 24. Kf2 Bc5 25. Be3 Kd6 26. Nc2 Bxe3+ 27.
Kxe3 Ne8 28. Kd2 Nc7 29. b4 f6 30. e3 Nb5 31. a4 Na7 32. Kc3 Nc6 33. Na3 Ne7
34. g4 Nb6 35. a5 Nd7 36. Nd2 Nc6 37. d4 e5 38. fxe5+ fxe5 39. dxe5+ Ndxe5 40.
Nb3 Nd7 41. Nd4 Ndb8 42. Ne2 Nd7 43. Ng3 Nf6 44. Ne2 Be4 45. Bf1 Bf3 46. Nd4
Ne4+ 47. Kd3 *
Position (FEN): 8/1p4p1/p1nk3p/P2p4/1P1Nn1P1/N2KPb1P/8/5B2 b - - 15 47
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1468
Best move: Nxb4#