Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nxc6 bxc6 6. c4 Bc5 7. Bd3 Qb6 8.
O-O Bb7 9. Nc3 d6 10. Na4 Qd8 11. Nxc5 dxc5 12. Be3 Qd6 13. Bc2 Qe5 14. b3 Nf6
15. Qf3 O-O 16. Rfd1 Rad8 17. Qe2 h5 18. f3 g5 19. Qf2 Nd7 20. Rab1 f5 21. Bxg5
Nf6 22. exf5 exf5 23. Qg3 Qxg3 24. hxg3 Rxd1+ 25. Rxd1 Bc8 26. f4 Ng4 27. Be7
Re8 28. Bxc5 Kf7 29. Bb1 Bd7 30. Rxd7+ Kg6 31. Rd6+ Kf7 32. Rd7+ Kg6 33. Rd1 a6
34. Bd3 Nf6 35. Kf2 Ng4+ 36. Kf3 Nh2+ 37. Kf2 Ng4+ 38. Kg1 Kf6 39. Bd4+ Kg6 40.
Bc3 Re3 41. Be1 Re8 42. Bf2 Kf6 43. Bc2 Re2 44. Bb1 Nxf2 45. Rd6+ Ke7 46. Rxc6
Ng4 47. Bxf5 *
Position (FEN): 8/4k3/p1R5/5B1p/2P2Pn1/1P4P1/P3r1P1/6K1 b - - 0 47
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 691
Best move: Re1#