Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nde2 Be7 8. Be3
Be6 9. Qd2 Nbd7 10. O-O-O b5 11. g4 Qc7 12. Kb1 b4 13. Nd5 Bxd5 14. exd5 a5 15.
g5 Nh5 16. Ng3 Nxg3 17. hxg3 Rc8 18. f4 Nb6 19. f5 Nc4 20. Bxc4 Qxc4 21. g6 h6
22. gxf7+ Kxf7 23. g4 Qxg4 24. Rdg1 Qe4 25. Rh2 Bf6 26. Rhg2 Qxf5 27. Qe2 g5
28. Rf1 Qg6 29. Rgf2 Rhf8 30. Rxf6+ Qxf6 31. Rxf6+ Kxf6 32. Qh5 Kg7 33. b3 Rf6
34. Bb6 Rf4 35. Bxa5 Rc5 36. Bb6 Rxd5 37. Qh3 Rd1+ 38. Kb2 Rff1 39. c3 *
Position (FEN): 8/6k1/1B1p3p/4p1p1/1p6/1PP4Q/PK6/3r1r2 b - - 0 39
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1724
Best move: Rd2#