Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. O-O d6 6. a4 Be6 7. Nbd2 Bxc4 8.
Nxc4 Qd7 9. c3 a6 10. b4 Ba7 11. Bg5 Ne7 12. Qb3 Ng6 13. b5 O-O 14. Bxf6 gxf6
15. b6 cxb6 16. Nxb6 Bxb6 17. Qxb6 Nf4 18. Qe3 Qg4 19. g3 Kh8 20. Kh1 Ng6 21.
d4 Rac8 22. Rab1 Rc7 23. Rb3 Rfc8 24. Rfb1 Rc4 25. a5 Kg7 26. Nd2 exd4 27. cxd4
Rc1+ 28. Rxc1 Rxc1+ 29. Kg2 *
Position (FEN): 8/1p3pkp/p2p1pn1/P7/3PP1q1/1R2Q1P1/3N1PKP/2r5 b - - 1 29
Black to move.
Themes: Pin Endgame Mate in 1 
Puzzle rating: 1360
Best move: Nh4#