Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Nxc6 bxc6 8.
e5 Ng8 9. f4 Nh6 10. Qd2 O-O 11. O-O-O d6 12. Bc4 Rb8 13. Bb3 a5 14. exd6 exd6
15. Bd4 Bxd4 16. Qxd4 Nf5 17. Qf2 d5 18. g4 Nd6 19. f5 Qg5+ 20. Kb1 Qxg4 21.
fxg6 fxg6 22. Qc5 Qb4 23. Qxc6 Bb7 24. Qd7 Nc4 25. Nxd5 Qc5 26. Rhe1 a4 27. Re7
Qd4 28. Ree1 *
Position (FEN): 1r3rk1/1b1Q3p/6p1/3N4/p1nq4/1B6/PPP4P/1K1RR3 b - - 3 28
Black to move.
Themes: Queenside Attack Middlegame Mate in 1 
Puzzle rating: 1443
Best move: Qxb2#