Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. f4 d5 3. Nc3 dxe4 4. Nxe4 exf4 5. Nf3 Bf5 6. Bd3 Nf6 7. Qe2 Be7 8.
Nxf6+ gxf6 9. Bxf5 Nc6 10. d3 Kf8 11. Bxf4 h6 12. O-O Bd6 13. Bxd6+ Qxd6 14.
Rae1 Rg8 15. h3 Qg3 16. Bg4 h5 17. Bxh5 Qxh3 18. Bg4 Qxg4 19. Rf2 Rh8 20. Kf1
Nd4 21. Nxd4 *
Position (FEN): r4k1r/ppp2p2/5p2/8/3N2q1/3P4/PPP1QRP1/4RK2 b - - 0 21
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 989
Best move: Rh1#