Chess puzzle (Checkmate)
Opening: Alekhine_Defense, Alekhine_Defense_Other_variations
Moves: 1. e4 Nf6 2. f3 e5 3. d3 d5 4. Be3 Be6 5. Be2 c5 6. Nh3 Nc6 7. Nf2 Nd7 8. Nd2
Bd6 9. Nb3 d4 10. Bd2 O-O 11. O-O f5 12. Nh1 f4 13. Qe1 Rf6 14. Nf2 Rg6 15. Kh1
Qg5 16. Rg1 Rh6 17. g4 fxg3 18. Bxg5 *
Position (FEN): r5k1/pp1n2pp/2nbb2r/2p1p1B1/3pP3/1N1P1Pp1/PPP1BN1P/R3Q1RK b - - 0 18
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 952
Best move: Rxh2#