Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Keres_Variation
Moves: 1. e4 c5 2. Ne2 Nc6 3. Ng3 e6 4. c3 d5 5. exd5 Qxd5 6. d3 b6 7. Nd2 Bb7 8. Nf3
Nf6 9. Be2 Be7 10. O-O O-O 11. Be3 Ne5 12. Nxe5 *
Position (FEN): r4rk1/pb2bppp/1p2pn2/2pqN3/8/2PPB1N1/PP2BPPP/R2Q1RK1 b - - 0 12
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 894
Best move: Qxg2#