Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Kan_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. O-O Bb4 8.
Qd3 Bxc3 9. bxc3 d5 10. exd5 Nxd5 11. Ba3 Ne7 12. Rfd1 O-O 13. Nf3 Nbc6 14. Ng5
f5 15. Qe3 Rf6 16. Bc4 Ne5 17. Bxe7 Nxc4 18. Qc5 Qxc5 19. Rd8+ Rf8 *
Position (FEN): r1bR1rk1/1p2B1pp/p3p3/2q2pN1/2n5/2P5/P1P2PPP/R5K1 w - - 2 20
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 842
Best move: Rxf8#