Chess puzzle (Checkmate)
Moves: 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. cxd5 exd5 5. d4 Be7 6. Bf4 O-O 7. h3 Nbd7 8.
e3 c5 9. dxc5 Nxc5 10. Nb5 Qa5+ 11. Qd2 Qd8 12. Nc7 Nce4 13. Qc1 Bb4+ 14. Ke2
Bd7 15. Nxa8 Bb5+ 16. Kd1 Nxf2+ 17. Kc2 Qxa8 18. Bxb5 Rc8+ 19. Kb3 Rxc1 20.
Rhxc1 Qd8 21. Kxb4 Qe7+ 22. Kb3 Qf8 23. Rc2 a5 24. Rac1 *
Position (FEN): 5qk1/1p3ppp/5n2/pB1p4/5B2/1K2PN1P/PPR2nP1/2R5 b - - 1 24
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1344
Best move: Qb4#