Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 e6 3. a3 d5 4. e3 b6 5. Nc3 Bb7 6. Nf3 Nbd7 7. Bd3 Be7 8. O-O
O-O 9. Qe2 c5 10. Rd1 Rc8 11. Ne5 cxd4 12. exd4 dxc4 13. Bxc4 Qc7 14. Nb5 Qb8
15. Bf4 Qa8 16. Nxd7 Nxd7 17. Nc7 Rxc7 18. Bxc7 Bxg2 19. Rd3 Bd5 20. Bxd5 Qxd5
21. Rdd1 Nf6 22. Bg3 Ne4 23. Rac1 Ng5 24. h3 Nf3+ 25. Kf1 Nxd4 26. Rxd4 *
Position (FEN): 5rk1/p3bppp/1p2p3/3q4/3R4/P5BP/1P2QP2/2R2K2 b - - 0 26
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1158
Best move: Qh1#