Chess puzzle (Checkmate)
Opening: Queens_Gambit_Accepted, Queens_Gambit_Accepted_Rosenthal_Variation
Moves: 1. d4 d5 2. Nf3 e6 3. c4 dxc4 4. Nc3 h6 5. e4 a6 6. Bxc4 b5 7. Bd3 Bb4 8. a3
Bxc3+ 9. bxc3 Bb7 10. Bb2 Nf6 11. e5 Nd5 12. O-O O-O 13. Rc1 Kh8 14. Bb1 f6 15.
exf6 Qxf6 16. Ne5 Nf4 17. Qc2 g6 18. g3 *
Position (FEN): rn3r1k/1bp5/p3pqpp/1p2N3/3P1n2/P1P3P1/1BQ2P1P/1BR2RK1 b - - 0 18
Black to move.
Themes:  Opening Mate in 1 
Puzzle rating: 1123
Best move: Nh3#