Chess puzzle (Checkmate)
Moves: 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. e3 Be7 5. d4 O-O 6. Be2 dxc4 7. Bxc4 a6 8. O-O
b5 9. Bd3 Bb7 10. a3 c5 11. Qc2 Nbd7 12. Ng5 h6 13. Nge4 cxd4 14. exd4 Rc8 15.
Re1 Nxe4 16. Bxe4 Bxe4 17. Qxe4 Nf6 18. Qd3 Qd7 19. Qg3 Kh8 20. Be3 Rfd8 21.
Rac1 Nd5 22. Nxd5 Qxd5 23. Rxc8 Rxc8 24. Kh1 Bf6 25. Rd1 Qb3 26. Qg4 Rc2 27.
Qe4 Qxb2 28. Qa8+ Kh7 29. Qe4+ g6 30. Qf4 Kg7 31. Qxh6+ Kg8 32. Qf4 Bg7 33.
Qb8+ Kh7 34. Qf4 Rc8 35. Qxf7 Qe2 36. Rg1 Qg4 37. Qd7 Rc2 38. d5 Qc4 39. dxe6
Qc8 40. Rd1 Rc7 41. Bg5 Rc6 42. e7 Qxd7 43. Rxd7 Re6 44. Rd8 *
Position (FEN): 3R4/4P1bk/p3r1p1/1p4B1/8/P7/5PPP/7K b - - 2 44
Black to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 419
Best move: Re1#