Chess puzzle (Checkmate)
Moves: 1. c4 e5 2. d4 e4 3. Nc3 Nf6 4. Bg5 Bb4 5. a3 Bxc3+ 6. bxc3 h6 7. Bh4 g5 8. Bg3
d5 9. cxd5 Nxd5 10. c4 Nb6 11. e3 f5 12. Be5 Rh7 13. Qb3 Be6 14. d5 Bf7 15. Rd1
N8d7 16. Bc3 Nc5 17. Qb5+ Ncd7 18. Ne2 a6 19. Qb4 Qe7 20. d6 Qe6 21. c5 Nc4 22.
Nd4 Qd5 23. Nxf5 Qxf5 24. Bxc4 Qxc5 25. Bxf7+ Rxf7 26. Qxe4+ Kf8 27. Bb4 Qb6
28. O-O Re8 29. Qg6 c5 30. Qxh6+ Rg7 31. Bc3 Ne5 32. d7 Qxh6 33. dxe8=Q+ Kxe8
34. Bxe5 Rd7 35. Rc1 Rd5 36. Bg3 b5 37. e4 Rd4 38. Rxc5 Rxe4 39. Rfc1 Qe6 40.
Rc8+ Kf7 41. R1c7+ Kg6 42. Rc6 *
Position (FEN): 2R5/8/p1R1q1k1/1p4p1/4r3/P5B1/5PPP/6K1 b - - 7 42
Black to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 601
Best move: Re1#