Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 Nc6 3. Bc4 e6 4. a3 Be7 5. O-O a6 6. d3 d5 7. Ba2 Nf6 8. Nc3 d4
9. Ne2 e5 10. Bd2 O-O 11. h3 b5 12. b4 c4 13. dxc4 Nxe4 14. cxb5 axb5 15. Bd5
Nxd2 16. Bxc6 Nxf3+ 17. Bxf3 Rb8 18. Ng3 f5 19. c3 e4 20. Qb3+ Kh8 21. Bd1 d3
22. Nh5 Qb6 23. Nf4 Bg5 24. Nd5 Qd6 25. Ne3 Be6 26. Qb2 f4 27. Ng4 h5 28. Nh2
g6 29. Re1 e3 30. Nf3 Bh6 31. Bb3 Bc4 32. Qa2 Rbc8 33. a4 Kh7 34. axb5 Bxb3 35.
Qxb3 d2 36. Red1 Bg7 37. Ra7 Kh6 38. c4 e2 39. Rxd2 Qxd2 40. Nxd2 e1=Q+ 41. Nf1
Rfe8 42. c5 Rcd8 43. Qf7 Qxf1+ 44. Kxf1 *
Position (FEN): 3rr3/R4Qb1/6pk/1PP4p/1P3p2/7P/5PP1/5K2 b - - 0 44
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 877
Best move: Rd1#