Chess puzzle (Checkmate)
Moves: 1. Nf3 Nc6 2. d4 d5 3. g3 Bg4 4. Bg2 Qd7 5. O-O O-O-O 6. c3 f6 7. a4 a5 8. Bd2
e5 9. dxe5 fxe5 10. b4 axb4 11. cxb4 Bxf3 12. Bxf3 Nxb4 13. Bg5 Nf6 14. e3 e4
15. Bxf6 gxf6 16. Bg4 f5 17. Bh3 h5 18. f3 Kb8 19. fxe4 Qg7 20. Na3 h4 21. g4
fxe4 22. Nb5 Bc5 23. Qc1 Nd3 24. Qd2 c6 25. Nc3 Bb4 26. Rac1 d4 27. exd4 Qxd4+
28. Kg2 e3 29. Qc2 Bxc3 30. Qxc3 Qe4+ 31. Kg1 e2 32. Rfe1 Qe3+ 33. Kg2 Qxh3+
34. Kxh3 *
Position (FEN): 1k1r3r/1p6/2p5/8/P5Pp/2Qn3K/4p2P/2R1R3 b - - 0 34
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1505
Best move: Nf4#