Chess puzzle (Checkmate)
Opening: Slav_Defense, Slav_Defense_Other_variations
Moves: 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 Bf5 5. Bd3 Bxd3 6. Qxd3 e6 7. Nf3 Nbd7 8.
O-O Bd6 9. b3 O-O 10. Bb2 c5 11. cxd5 exd5 12. dxc5 Nxc5 13. Qd2 Nfe4 14. Nxe4
dxe4 15. Qd4 exf3 *
Position (FEN): r2q1rk1/pp3ppp/3b4/2n5/3Q4/1P2Pp2/PB3PPP/R4RK1 w - - 0 16
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 526
Best move: Qxg7#