Chess puzzle (Checkmate)
Moves: 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nf6 5. f4 Nbd7 6. Nf3 O-O 7. Bd3 b6 8. O-O
Bb7 9. d5 Nc5 10. Bc2 Re8 11. Rb1 a5 12. a3 Na6 13. e5 dxe5 14. fxe5 Ng4 15.
Bf4 c6 16. h3 Nh6 17. Qd2 Nf5 18. g4 Nh4 19. Nxh4 e6 20. Bg5 Qc7 21. Bf6 cxd5
22. cxd5 exd5 23. Rbd1 d4 24. Nb5 Qc5 25. Nxd4 Qd5 26. Nhf3 Nc5 27. b4 axb4 28.
axb4 Ne4 29. Bxe4 Qxe4 30. Qe2 Qf4 31. Nb5 Ba6 32. Nfd4 Bxb5 33. Nxb5 Qg3+ 34.
Qg2 Qe3+ 35. Kh1 Qb3 36. Nd6 Ra2 37. Qf3 Qc2 38. Rf2 Qxf2 39. Qxf2 Rxf2 40.
Nxe8 Bxf6 41. Nxf6+ Kg7 42. Rd6 Re2 43. Nd7 b5 44. Rd5 h5 45. gxh5 gxh5 46.
Rxb5 Rd2 47. Nc5 Kg6 48. Rb6+ Kf5 49. e6 fxe6 50. Nxe6 Ke4 51. Ng5+ Kf4 52.
Ne6+ Kg3 53. Kg1 *
Position (FEN): 8/8/1R2N3/7p/1P6/6kP/3r4/6K1 b - - 6 53
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 844
Best move: Rd1#