Chess puzzle (Checkmate)
Opening: Modern_Defense, Modern_Defense_Pseudo-Austrian_Attack
Moves: 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 a6 5. Nf3 b5 6. Bd3 Bb7 7. O-O Nf6 8. Re1
O-O 9. a3 Nbd7 10. b4 c5 11. d5 cxb4 12. axb4 Ng4 13. Qd2 Qb6+ 14. Kh1 Nf2+ 15.
Kg1 Nh3+ 16. Kh1 Bxc3 17. Qxc3 Qg1+ 18. Nxg1 *
Position (FEN): r4rk1/1b1npp1p/p2p2p1/1p1P4/1P2PP2/2QB3n/2P3PP/R1B1R1NK b - - 0 18
Black to move.
Themes:  Middlegame Mate in 1, Smothered Mate 
Puzzle rating: 1327
Best move: Nf2#