Chess puzzle (Checkmate)
Opening: Three_Knights_Opening, Three_Knights_Opening_Other_variations
Moves: 1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. a3 Nf6 5. Bc4 a6 6. Bd5 Nxd5 7. exd5 Nd4 8.
Nxe5 Qe7 9. O-O O-O 10. Nf3 Nxf3+ 11. Qxf3 d6 12. Re1 *
Position (FEN): r1b2rk1/1pp1qppp/p2p4/2bP4/8/P1N2Q2/1PPP1PPP/R1B1R1K1 b - - 1 12
Black to move.
Themes: Hanging Piece, Kingside Attack Middlegame Mate in 1 
Puzzle rating: 490
Best move: Qxe1#