Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Old_Sicilian
Moves: 1. e4 c5 2. Nf3 Nc6 3. Bc4 e6 4. O-O d5 5. exd5 exd5 6. Re1+ Be7 7. Bb5 Bd7 8.
d4 a6 9. Bxc6 Bxc6 10. dxc5 Nf6 11. b4 O-O 12. c4 Re8 13. Nc3 dxc4 14. Qxd8
Raxd8 15. Bf4 Nh5 16. Bc7 Rd7 17. Bb6 Bf6 18. Nd5 Bxa1 *
Position (FEN): 4r1k1/1p1r1ppp/pBb5/2PN3n/1Pp5/5N2/P4PPP/b3R1K1 w - - 0 19
White to move.
Themes: Hanging Piece Middlegame Back Rank Mate, Mate in 1 
Puzzle rating: 893
Best move: Rxe8#