Chess puzzle (Checkmate)
Opening: Zukertort_Opening, Zukertort_Opening_Queens_Gambit_Invitation
Moves: 1. Nf3 e6 2. e3 c5 3. b3 Nc6 4. Bb2 Nf6 5. c4 d5 6. d4 cxd4 7. Nxd4 Nxd4 8.
Qxd4 Be7 9. Nc3 O-O 10. cxd5 Nxd5 11. Nxd5 Qa5+ 12. b4 Qxd5 *
Position (FEN): r1b2rk1/pp2bppp/4p3/3q4/1P1Q4/4P3/PB3PPP/R3KB1R w KQ - 0 13
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 748
Best move: Qxg7#