Chess puzzle (Checkmate)
Moves: 1. f4 d5 2. Nf3 c5 3. e3 Nf6 4. Be2 Nc6 5. O-O e6 6. Nc3 a6 7. b3 Bd6 8. Bb2
Qc7 9. Qe1 b5 10. Nd1 Bb7 11. Nf2 O-O-O 12. a4 b4 13. Nd3 h6 14. Nde5 Bxe5 15.
fxe5 Ng4 16. c3 Ngxe5 17. cxb4 Nxf3+ 18. Bxf3 Nxb4 19. Bxg7 Rhg8 20. Bf6 Nc2
21. Qc1 Nxa1 22. Qxa1 Rd7 23. Be5 Qc6 24. b4 c4 25. b5 axb5 26. axb5 Qxb5 27.
Rb1 Qc6 28. Qa8+ Bxa8 *
Position (FEN): b1k3r1/3r1p2/2q1p2p/3pB3/2p5/4PB2/3P2PP/1R4K1 w - - 0 29
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 400
Best move: Rb8#