Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. d3 d5 3. Nd2 e5 4. Ngf3 Bd6 5. g3 Nf6 6. Bg2 O-O 7. O-O Nbd7 8.
exd5 cxd5 9. c4 Nc5 10. cxd5 Nxd3 11. Nc4 Nxc1 12. Rxc1 Re8 13. Re1 Bg4 14. Qb3
Rb8 15. Nfxe5 Bxe5 16. Nxe5 Qa5 17. h3 Bd7 18. Rc3 Ba4 19. Qa3 Nxd5 20. Rcc1
Nb6 21. Nd3 Rxe1+ 22. Rxe1 Rd8 23. Re7 Nc4 24. Qb4 Qf5 25. Qxa4 Qxd3 26. Qe8+
Rxe8 *
Position (FEN): 4r1k1/pp2Rppp/8/8/2n5/3q2PP/PP3PB1/6K1 w - - 0 27
White to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 600
Best move: Rxe8#