Chess puzzle (Checkmate)
Opening: Elephant_Gambit, Elephant_Gambit_Paulsen_Countergambit
Moves: 1. e4 e5 2. Nf3 d5 3. exd5 e4 4. Qe2 Nf6 5. Nc3 Be7 6. Nxe4 O-O 7. Nxf6+ Bxf6
8. Qd3 Re8+ 9. Be2 Qe7 10. Kf1 Nd7 11. c3 Nc5 12. Qc4 Bf5 13. d4 Ne4 14. Bd3
Nd6 15. Qb3 Bxd3+ 16. Kg1 Qe1+ 17. Nxe1 *
Position (FEN): r3r1k1/ppp2ppp/3n1b2/3P4/3P4/1QPb4/PP3PPP/R1B1N1KR b - - 0 17
Black to move.
Themes:  Middlegame Back Rank Mate, Mate in 1 
Puzzle rating: 919
Best move: Rxe1#