Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Bc4 e6 3. Nf3 Nf6 4. d4 cxd4 5. Nxd4 Nxe4 6. O-O d5 7. Bb3 Be7 8.
Be3 O-O 9. f3 Nc5 10. Nd2 e5 11. Nb5 d4 12. Bf2 a6 13. Na3 Nxb3 14. Nxb3 Bxa3
15. bxa3 Qc7 16. Nd2 Bf5 17. Ne4 Bxe4 18. fxe4 Nd7 19. Bg3 Rac8 20. Rb1 Qc3 21.
Rxb7 Nf6 22. Bxe5 Nxe4 23. Qg4 Qe3+ 24. Kh1 Nf2+ 25. Kg1 Nh3+ 26. Kh1 Qg1+ 27.
Rxg1 *
Position (FEN): 2r2rk1/1R3ppp/p7/4B3/3p2Q1/P6n/P1P3PP/6RK b - - 0 27
Black to move.
Themes:  Middlegame Mate in 1, Smothered Mate 
Puzzle rating: 829
Best move: Nf2#