Chess puzzle (Checkmate)
Moves: 1. f4 d5 2. Nf3 c6 3. e3 g6 4. g3 Bg7 5. Bg2 Bg4 6. O-O Nd7 7. d3 e6 8. Qe1
Bxf3 9. Bxf3 Ngf6 10. e4 dxe4 11. dxe4 O-O 12. e5 Nd5 13. Qf2 Qc7 14. Na3 b5
15. c4 bxc4 16. Nxc4 N5b6 17. Nd6 Nc8 18. Nxc8 Raxc8 19. Be3 c5 20. Rac1 f6 21.
exf6 Bxf6 22. b4 c4 23. Qe2 c3 24. Bg4 Rfe8 25. Bf2 Nb6 26. Rfe1 Kg7 27. Bc5
Nd5 28. Bxe6 Rcd8 29. Qc4 Nb6 30. Bxb6 Qxc4 31. Bxc4 axb6 32. Rxe8 Rxe8 33. a4
Rd8 34. a5 bxa5 35. bxa5 Rd2 36. a6 Rd7 37. Rc2 Ra7 38. Kf1 Kf8 39. Ke2 Ke7 40.
Kd3 Kd6 41. Rc1 Kc5 42. Rb1 Rd7+ 43. Kc2 Kxc4 44. Rb7 Rd2+ 45. Kc1 Bd4 46. Rc7+
Kd3 47. a7 c2 48. a8=Q *
Position (FEN): Q7/2R4p/6p1/8/3b1P2/3k2P1/2pr3P/2K5 b - - 0 48
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 812
Best move: Rd1#