Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Other_variations
Moves: 1. d4 d5 2. c4 e6 3. a3 Nf6 4. Nc3 b6 5. a4 Bb7 6. e3 c5 7. Nf3 cxd4 8. exd4
dxc4 9. Bxc4 Bb4 10. Bd2 Nc6 11. Be3 Na5 12. Be2 Bxc3+ 13. bxc3 Ne4 14. Qd3 f5
15. Ne5 Nb3 16. Rb1 Qd5 17. O-O Rc8 18. c4 Nxf2 19. Bxf2 *
Position (FEN): 2r1k2r/pb4pp/1p2p3/3qNp2/P1PP4/1n1Q4/4BBPP/1R3RK1 b k - 0 19
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1031
Best move: Qxg2#