Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Nf3 d5 3. e3 Nc6 4. c3 Bg4 5. Nbd2 e5 6. h3 Bh5 7. g4 Bg6 8. Nxe5
Nxe5 9. dxe5 Ne4 10. Nxe4 Bxe4 11. Rg1 Qg5 12. Bg2 Qxe5 13. Bxe4 dxe4 14. Qa4+
c6 15. Qd4 Bd6 16. Qxe5+ Bxe5 17. Rf1 O-O 18. f4 Bc7 19. b3 Rad8 20. Bb2 Rd3
21. Ke2 Rfd8 22. Rad1 Bb6 23. Rxd3 Rxd3 24. Bc1 Rxc3 25. Rd1 Rc2+ 26. Rd2 Rxc1
27. Rd7 Rc2+ 28. Kd1 Rxa2 29. Rxb7 Bxe3 *
Position (FEN): 6k1/pR3ppp/2p5/8/4pPP1/1P2b2P/r7/3K4 w - - 0 30
White to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 567
Best move: Rb8#