Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Qd7 5. a3 Bxc3+ 6. bxc3 b6 7. Qg4 f5 8. Qg3
Ba6 9. Bxa6 Nxa6 10. Ne2 Nb8 11. Nf4 Nc6 12. a4 O-O-O 13. Qd3 Na5 14. Qa6+ Kb8
15. Qd3 Nc4 16. Bd2 Ne7 17. O-O Nc6 18. Rfb1 N6a5 19. Ne2 Rhg8 20. Nc1 Nxd2 21.
Qxd2 Nc4 22. Qd3 a5 23. Nb3 Ka7 24. Nd2 Nxd2 25. Qxd2 g5 26. Rb5 h5 27. c4 dxc4
28. Rxa5+ Kb7 29. Rb5 Qxd4 30. Qc1 Rd5 31. Rb2 Rgd8 32. Rbb1 Qxe5 33. Qxg5 Qxa1
34. Qc1 Qxb1 35. Qxb1 Rd1+ 36. Qxd1 *
Position (FEN): 3r4/1kp5/1p2p3/5p1p/P1p5/8/2P2PPP/3Q2K1 b - - 0 36
Black to move.
Themes: Hanging Piece Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 645
Best move: Rxd1#