Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bd3 e5 7. Nb3 Be6 8. Bg5
Nbd7 9. Qd2 h6 10. Bh4 Nxe4 11. Bxe4 Qxh4 12. Bxb7 Rb8 13. Bxa6 Be7 14. O-O O-O
15. Be2 Rb4 16. Nd5 Bxd5 17. Qxd5 Nf6 18. Qd2 Rfb8 19. a3 Ra4 20. Rab1 Ne4 21.
Qe3 Bd8 22. Bd3 Bb6 23. Qf3 Nxf2 24. Rxf2 Rf4 25. Qc6 Bxf2+ 26. Kh1 Qxh2+ 27.
Kxh2 *
Position (FEN): 1r4k1/5pp1/2Qp3p/4p3/5r2/PN1B4/1PP2bPK/1R6 b - - 0 27
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 541
Best move: Rh4#