Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Bf4 Nf6 3. e3 c5 4. dxc5 Nc6 5. c3 Bf5 6. Bd3 Bxd3 7. Qxd3 e6 8. b4
a5 9. Qb5 Qd7 10. Nd2 axb4 11. cxb4 Be7 12. Ngf3 O-O 13. O-O e5 14. Bg3 Nh5 15.
Bh4 e4 16. Bxe7 Qxe7 17. Nd4 Rfc8 18. a3 Nxd4 19. exd4 Nf4 20. Nb3 Qg5 21. g3
Qg4 22. Nd2 Nh3+ 23. Kg2 Ng5 24. f3 Qh3+ 25. Kh1 Rc6 26. Qxb7 Rac8 27. fxe4 Rh6
28. Rf2 Rf8 29. Qxd5 Qxg3 30. Rg2 Nf3 31. Rxg3 *
Position (FEN): 5rk1/5ppp/7r/2PQ4/1P1PP3/P4nR1/3N3P/R6K b - - 0 31
Black to move.
Themes:  Middlegame Arabian Mate, Mate in 1 
Puzzle rating: 877
Best move: Rxh2#