Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Closed
Moves: 1. e4 c5 2. Nc3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Qd2 Nf6 6. b3 g6 7. Bb2 Bg7 8.
O-O-O O-O 9. f3 a6 10. g4 b5 11. Kb1 b4 12. Nce2 a5 13. h4 h5 14. Nf4 hxg4 15.
h5 gxf3 16. hxg6 Nxe4 17. Qh2 Ng5 18. Qh8+ Bxh8 *
Position (FEN): r1bq1rkb/4pp2/2np2P1/p5n1/1p3N2/1P3p2/PBP5/1K1R1BNR w - - 0 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1399
Best move: Rxh8#