Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 d5 3. exd5 e4 4. Qe2 Nf6 5. Nc3 Be7 6. Nxe4 O-O 7. d3 Re8 8.
Bd2 Qxd5 9. Nxf6+ gxf6 10. c4 Qd8 11. O-O-O Bf5 12. Be3 Nc6 13. Qc2 Nb4 14. Qb3
a5 15. Kb1 a4 16. Qc3 a3 17. b3 Nc6 18. Nh4 Bb4 19. Qc1 Bg4 20. f3 Be6 21. Bd2
f5 22. g3 Qf6 23. Bxb4 Nxb4 24. d4 Rad8 25. d5 Bxd5 26. cxd5 Nxd5 27. Rxd5 Rxd5
28. Bc4 Re2 29. Bxd5 Rb2+ 30. Qxb2 *
Position (FEN): 6k1/1pp2p1p/5q2/3B1p2/7N/pP3PP1/PQ5P/1K5R b - - 0 30
Black to move.
Themes: Queenside Attack Endgame Mate in 1 
Puzzle rating: 493
Best move: Qxb2#