Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Other_variations
Moves: 1. d4 e6 2. c4 d5 3. cxd5 exd5 4. Nc3 Nf6 5. Nf3 c5 6. Bg5 Qb6 7. dxc5 Bxc5 8.
e3 Qxb2 9. Bxf6 gxf6 10. Nxd5 Bb4+ 11. Nxb4 Qxb4+ 12. Nd2 Be6 13. Be2 Nc6 14.
O-O O-O-O 15. Rb1 Qxd2 16. Qa4 Qxe2 17. Rfc1 Qxa2 18. Rxc6+ bxc6 *
Position (FEN): 2kr3r/p4p1p/2p1bp2/8/Q7/4P3/q4PPP/1R4K1 w - - 0 19
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 919
Best move: Qxc6#