Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Colle_System
Moves: 1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Be2 g6 5. O-O Bg7 6. b3 O-O 7. Bb2 a6 8. Nbd2
Nbd7 9. c4 dxc4 10. Nxc4 c5 11. Nce5 cxd4 12. Nxd7 Qxd7 13. Bxd4 b5 14. Ne5 Qe8
15. Qc2 Bb7 16. Nd3 Rc8 17. Qd2 Qc6 18. Rac1 *
Position (FEN): 2r2rk1/1b3pbp/p1q1pnp1/1p6/3B4/1P1NP3/P2QBPPP/2R2RK1 b - - 9 18
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1220
Best move: Qxg2#