Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Bf4 c5 3. e3 d5 4. c3 Nc6 5. Bd3 Bg4 6. Nf3 e6 7. Nbd2 Bd6 8. h3
Bh5 9. Qb3 Bxf4 10. Qxb7 Qc8 11. Qxc8+ Rxc8 12. exf4 cxd4 13. Nxd4 Nxd4 14.
cxd4 O-O 15. O-O Rc7 16. Rfc1 Rfc8 17. Nb3 Bg6 18. Ba6 Rxc1+ 19. Rxc1 Rxc1+ 20.
Nxc1 Bc2 21. Bd3 Bd1 22. Kf1 Ne8 23. f3 Ba4 24. Ke1 Nd6 25. Kd2 Kf8 26. Nb3
Bxb3 27. axb3 g6 28. Kc3 Ke7 29. Kb4 Kd7 30. Kc5 Kc7 31. b4 h5 32. g4 h4 33.
Bb5 *
Position (FEN): 8/p1k2p2/3np1p1/1BKp4/1P1P1PPp/5P1P/1P6/8 b - - 1 33
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1630
Best move: Nb7#