Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Nf3 d5 3. Bg5 Ne4 4. Bf4 c5 5. dxc5 Nc6 6. e3 f6 7. Bb5 e5 8. Bxe5
fxe5 9. Nxe5 Qf6 10. Qxd5 Nxc5 11. Nxc6 a6 12. Nc3 Be6 13. Nd4+ axb5 14. Nxe6
Qxe6 15. Nxb5 Qxd5 16. Nc7+ Kf7 17. Nxd5 Rd8 18. Rd1 Na4 19. b3 Nc5 20. c4 Ne6
21. Ke2 g6 22. Nc3 Bg7 23. Ne4 Ke7 24. f4 Rxd1 25. Rxd1 h5 26. h3 Ra8 27. a4
Rc8 28. Nd6 Rc7 29. Nb5 Rc6 30. Na3 Nc5 31. Nb1 Nxb3 32. Nd2 Nxd2 33. Rxd2 Rxc4
34. Ra2 Rb4 35. a5 Rb5 36. a6 bxa6 37. Rxa6 Rb4 38. Rxg6 Kf7 39. Rg5 h4 40. Kf3
Bf6 41. Rf5 Rb2 42. e4 Kg6 43. Rd5 Rb3+ 44. Kg4 *
Position (FEN): 8/8/5bk1/3R4/4PPKp/1r5P/6P1/8 b - - 4 44
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1304
Best move: Rg3#