Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. a3 Bb7 7. Bd3 Qc7 8. O-O
Nf6 9. Bg5 Be7 10. Bh4 d6 11. Bg3 Nbd7 12. Kh1 Nc5 13. f4 Ncxe4 14. Nxe4 Nxe4
15. Bxe4 Bxe4 16. f5 e5 17. Qg4 Bb7 18. Qxg7 O-O-O 19. Nf3 Rdg8 20. Qxf7 Rf8
21. Qe6+ Kb8 22. Nxe5 Bc8 23. Qd5 Bb7 24. Qd4 Bf6 25. Nd7+ Qxd7 26. Qxd6+ Kc8 *
Position (FEN): 2k2r1r/1b1q3p/p2Q1b2/1p3P2/8/P5B1/1PP3PP/R4R1K w - - 1 27
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1143
Best move: Qb8#