Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 e5 5. Nb3 Nf6 6. Nc3 Bb4 7. Bg5 Nc6 8.
Bd3 h6 9. Bxf6 Qxf6 10. O-O Bxc3 11. bxc3 O-O 12. Re1 d6 13. c4 Be6 14. Nd2
Rac8 15. Qe2 Nd4 16. Qh5 Kh7 17. c3 g6 18. Qd1 Nc6 19. Qb3 Qe7 20. Nf3 Na5 21.
Qb4 Nxc4 22. Bxc4 Rxc4 23. Qb6 Rc6 24. Qb4 Qc7 25. Rab1 b5 26. Rec1 Bxa2 27.
Ra1 Be6 28. Nd2 Rc8 29. c4 Bxc4 30. Nxc4 Rxc4 31. Rxc4 Qxc4 32. Qxd6 Qc1+ 33.
Qd1 Qxd1+ 34. Rxd1 b4 35. Rd6 Rb8 36. Rxa6 b3 37. Ra1 b2 38. Rb1 Rc8 39. Rxb2 *
Position (FEN): 2r5/5p1k/6pp/4p3/4P3/8/1R3PPP/6K1 b - - 0 39
Black to move.
Themes:  Endgame, Rook Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 475
Best move: Rc1#