Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. O-O Ngf6 6. Re1 g6 7. c3 Bg7 8.
d4 O-O 9. h3 Rc8 10. Bf4 Re8 11. Nbd2 e5 12. dxe5 dxe5 13. Bh2 c4 14. Qe2 b5
15. a4 a6 16. axb5 axb5 17. Red1 Nc5 18. Nxc4 Qc7 19. Nd6 Nh5 20. Nxc8 Rxc8 21.
Qxb5 Rb8 22. Qe2 Nf4 23. Bxf4 exf4 24. b4 Ne6 25. Rac1 g5 26. e5 h5 27. Qe4 g4
28. hxg4 hxg4 29. Nd4 Qxe5 30. Qxe5 Bxe5 31. Nxe6 fxe6 32. Re1 Bf6 33. Rxe6 Kf7
34. Re4 Bg5 35. Ra1 Rc8 36. Ra7+ Kf6 37. c4 Kf5 38. Rd4 Re8 39. f3 g3 40. Ra5+
Kg6 41. Rd6+ Kh5 42. Rdd5 *
Position (FEN): 4r3/8/8/R2R2bk/1PP2p2/5Pp1/6P1/6K1 b - - 5 42
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 875
Best move: Re1#