Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Nge7 6. Be2 Nf5 7. O-O Qb6 8. a4
cxd4 9. a5 Nxa5 10. cxd4 Nc6 11. Nc3 Nfxd4 12. Na4 Nxf3+ 13. Bxf3 Qc7 14. Bf4
Bd7 15. g3 Be7 16. Bg2 O-O 17. Nc3 Nxe5 18. Re1 Bd6 19. Nb5 Bxb5 20. Rc1 Qb8
21. Qd4 f6 22. Bxd5 exd5 23. Qxd5+ Rf7 24. Qxb5 a6 25. Qd5 Qe8 26. Qxd6 Rd8 27.
Qa3 b5 28. Bxe5 fxe5 29. Qxa6 Re7 30. Rc6 Rb8 31. f4 e4 32. Rd6 e3 33. Re2 Rd7
34. Re6 Rd1+ 35. Kg2 Qd8 36. R6xe3 Qd5+ 37. Kf2 Qh1 38. Qa2+ Kh8 39. Re8+ Rxe8
*
Position (FEN): 4r2k/6pp/8/1p6/5P2/6P1/QP2RK1P/3r3q w - - 0 40
White to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 589
Best move: Rxe8#