Chess puzzle (Checkmate)
Opening: Philidor_Defense, Philidor_Defense_Other_variations
Moves: 1. e4 e5 2. Nf3 d6 3. Nc3 c6 4. b3 Be7 5. Bb2 h6 6. d4 exd4 7. Qxd4 Nf6 8. Be2
c5 9. Qd3 Nc6 10. h3 Nb4 11. Qd2 O-O 12. g4 g5 13. h4 Nxg4 14. hxg5 Bxg5 15.
Nxg5 Qxg5 16. Qxg5+ hxg5 17. O-O-O Nxf2 18. Nd5 Nxh1 19. Rxh1 Nxd5 *
Position (FEN): r1b2rk1/pp3p2/3p4/2pn2p1/4P3/1P6/PBP1B3/2K4R w - - 0 20
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 657
Best move: Rh8#