Chess puzzle (Checkmate)
Opening: Italian_Game, Italian_Game_Classical_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 a6 6. Bb3 O-O 7. O-O d5 8. exd5
Nxd5 9. Re1 Re8 10. d4 exd4 11. cxd4 Rxe1+ 12. Qxe1 Nxd4 13. Nxd4 Bxd4 14. Bxd5
Bf5 15. Bb3 Qd7 16. Nc3 Re8 17. Qd1 Bxc3 18. Qxd7 *
Position (FEN): 4r1k1/1ppQ1ppp/p7/5b2/8/1Bb5/PP3PPP/R1B3K1 b - - 0 18
Black to move.
Themes:  Middlegame Back Rank Mate, Mate in 1 
Puzzle rating: 876
Best move: Re1#