Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Nf6 6. Nc3 Bb4 7. Nxc6 bxc6 8.
Bd2 O-O 9. Qc2 d6 10. a3 Ba5 11. Bd3 e5 12. O-O Be6 13. Bg5 h6 14. Bh4 Rc8 15.
Kh1 d5 16. exd5 cxd5 17. Rad1 d4 18. Ne4 g5 19. Nxg5 hxg5 20. Bxg5 Kg7 21. f4
e4 22. Bxe4 Bxc4 23. Rf3 Bd5 24. Qd3 Bxe4 25. Bxf6+ Qxf6 26. Qxe4 Rh8 27. Rg3+
Kf8 28. h3 Bb6 29. b4 Re8 30. Qd5 Qxf4 31. Rf3 Qc7 32. Rdf1 Re7 33. Qa8+ Qd8
34. Qc6 d3 35. Qc3 Rg8 36. Rxd3 Qc7 37. Qd2 Qc6 38. Rdf3 Qd7 39. Qa2 Ke8 40. a4
Rf8 41. a5 Bd4 42. Qc4 Be5 43. b5 Qc7 44. Qa4 Qd7 45. a6 Bc7 46. Qc4 Qd6 47.
Qc6+ Qxc6 48. bxc6 Re6 49. Rc3 Ke7 50. Rb1 Rb8 51. Rxb8 *
Position (FEN): 1R6/p1b1kp2/P1P1r3/8/8/2R4P/6P1/7K b - - 0 51
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1206
Best move: Re1#