Chess puzzle (Checkmate)
Moves: 1. d4 g6 2. c4 Bg7 3. Nf3 d6 4. Nc3 e5 5. dxe5 dxe5 6. Qxd8+ Kxd8 7. Ng5 Ke8 8.
Nb5 Na6 9. Be3 f6 10. Nf3 Bh6 11. Bxh6 Nxh6 12. e3 c6 13. Nd6+ Ke7 14. O-O-O
Rd8 15. Nxc8+ Raxc8 16. Be2 Nc5 17. h3 a5 18. Kc2 Nf5 19. Nd2 Nd6 20. Bf3 b5
21. Be2 b4 22. Nb3 Ncb7 23. c5 Ne4 24. Ba6 Rc7 25. Bxb7 Rxb7 26. Nxa5 Rc7 27.
Rxd8 Kxd8 28. Kb3 Nxc5+ 29. Kc4 Ne4 30. f3 Nd6+ 31. Kxb4 c5+ 32. Kc3 Ke7 33.
Rd1 Ke6 34. Nc4 Nb5+ 35. Kc2 Ra7 36. a3 Ra8 37. Ra1 f5 38. a4 f4 39. exf4 Nd4+
40. Kd3 exf4 41. Ra3 Kf5 42. a5 Rd8 43. Ra4 Nxf3+ 44. Kc3 Ne1 45. a6 *
Position (FEN): 3r4/7p/P5p1/2p2k2/R1N2p2/2K4P/1P4P1/4n3 b - - 0 45
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 638
Best move: Rd3#