Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Colle_System
Moves: 1. d4 d5 2. e3 Nf6 3. Nf3 Bg4 4. Nbd2 e6 5. Be2 Bd6 6. O-O O-O 7. h3 Bh5 8. a3
Nbd7 9. b4 Qe7 10. Bb2 b6 11. c4 c5 12. dxc5 bxc5 13. bxc5 Nxc5 14. Nd4 Rab8
15. Nc6 Qb7 16. Nxb8 Qxb2 17. Rb1 Qe5 18. Nc6 *
Position (FEN): 5rk1/p4ppp/2Nbpn2/2npq2b/2P5/P3P2P/3NBPP1/1R1Q1RK1 b - - 3 18
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1092
Best move: Qh2#