Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 Nc6 5. c3 Qb6 6. Bd3 cxd4 7. cxd4 Bd7 8. Nc3
Nxd4 9. Nxd4 Qxd4 10. O-O a6 11. Re1 Bb4 12. Qc2 Bxc3 13. bxc3 Qh4 14. Ba3 Ne7
15. Qd2 Qa4 16. Bd6 Bb5 17. Qg5 Nc6 18. Qxg7 O-O-O 19. Bxb5 Qxb5 20. Rab1 Qd3
21. Qxf7 Rd7 22. Qxe6 Qg6 23. Qxd5 Rg8 24. Qxc6+ bxc6 *
Position (FEN): 2k3r1/3r3p/p1pB2q1/4P3/8/2P5/P4PPP/1R2R1K1 w - - 0 25
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 616
Best move: Rb8#