Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Nf3 e6 3. Bg5 Be7 4. Nbd2 d5 5. e3 c5 6. c3 Nc6 7. Bd3 h6 8. Bh4
Qc7 9. O-O Bd6 10. Bxf6 gxf6 11. e4 Bd7 12. exd5 exd5 13. Re1+ Ne7 14. dxc5
Bxc5 15. Nb3 Bd6 16. Nbd4 O-O-O 17. Bb5 Rhg8 18. Qa4 Bh3 19. Bf1 a6 20. c4 Kb8
21. cxd5 Nxd5 22. Rac1 Qb6 23. Qc4 Bxg2 24. Bxg2 Nf4 25. Nh4 Be5 26. Ndf5 Nh3+
27. Kh1 Nxf2+ 28. Kg1 Nh3+ 29. Kh1 Qg1+ 30. Rxg1 *
Position (FEN): 1k1r2r1/1p3p2/p4p1p/4bN2/2Q4N/7n/PP4BP/2R3RK b - - 0 30
Black to move.
Themes:  Middlegame Mate in 1, Smothered Mate 
Puzzle rating: 899
Best move: Nf2#