Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Nc6 5. d5 exd5 6. cxd5 Nb4 7. d6 Nc6 8. dxc7
Qxc7 9. Nf3 Bb4+ 10. Bd2 Bxd2+ 11. Nbxd2 O-O 12. O-O Ba6 13. Rc1 Rae8 14. Re1
Qd6 15. Qa4 Bxe2 16. Nc4 Qd3 17. Rc3 Qf5 18. Nh4 Qg5 19. Ne3 b5 20. Qc2 Bc4 21.
b3 Nb4 22. Qd2 Bd5 23. f4 Qh5 24. Rc5 Na6 25. Rxb5 Rb8 26. Rxb8 Rxb8 27. Nxd5
Nxd5 28. Qxd5 Qg4 29. Qb5 Rxb5 *
Position (FEN): 6k1/p2p1ppp/n7/1r6/5PqN/1P4P1/P5BP/4R1K1 w - - 0 30
White to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 641
Best move: Re8#