Chess puzzle (Checkmate)
Moves: 1. g3 d5 2. Bg2 e5 3. c4 c6 4. cxd5 cxd5 5. d4 e4 6. Nc3 Nc6 7. f3 f5 8. Nh3
Nf6 9. Bg5 Be7 10. Nf4 h6 11. Bxf6 Bxf6 12. Nfxd5 Bxd4 13. fxe4 O-O 14. e3
Bxc3+ 15. Nxc3 fxe4 16. Qxd8 Nxd8 17. Bxe4 Bg4 18. Rf1 Ne6 19. Rxf8+ Kxf8 20.
Rc1 Re8 21. Bd5 Nc5 22. Kd2 Rd8 23. e4 Be6 24. Ke3 Bg4 25. b4 Nd7 26. a3 b6 27.
Nb5 a5 28. Rc7 Ke7 29. Kf4 Be6 30. Bxe6 Kxe6 31. Nd4+ Kd6 32. Ra7 axb4 33. axb4
Rf8+ 34. Nf5+ Ke6 35. Ke3 g6 36. Nxh6 Ne5 37. h3 Rf3+ 38. Kd4 Rxg3 39. Rb7 *
Position (FEN): 8/1R6/1p2k1pN/4n3/1P1KP3/6rP/8/8 b - - 1 39
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1097
Best move: Rd3#