Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 c5 3. Nf3 cxd4 4. Nxd4 Nc6 5. Nxc6 bxc6 6. Bd3 Bc5 7. Qe2 Bb6 8.
O-O Nf6 9. h3 h6 10. b3 Bb7 11. Bb2 d6 12. e5 Nd5 13. exd6 Qxd6 14. Bxg7 Rg8
15. Be5 Qe7 16. c4 Nc7 17. Be4 O-O-O 18. Nc3 Qh4 19. Qf3 f5 20. Bxc6 Bxc6 21.
Qxc6 Qxh3 22. Bxc7 Bxc7 23. Nb5 *
Position (FEN): 2kr2r1/p1b5/2Q1p2p/1N3p2/2P5/1P5q/P4PP1/R4RK1 b - - 1 23
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1578
Best move: Qh2#