Chess puzzle (Checkmate)
Moves: 1. Nf3 c5 2. Nc3 d6 3. e4 Nf6 4. Bc4 e6 5. d4 cxd4 6. Nxd4 a6 7. Bg5 Be7 8. Qd3
O-O 9. O-O-O b5 10. Bb3 Qc7 11. f4 Nbd7 12. g4 Nc5 13. Qf3 Bb7 14. Bxf6 Bxf6
15. g5 Nxb3+ 16. Nxb3 Bxc3 17. bxc3 Rac8 18. Rd3 b4 19. Kb2 a5 20. Nd2 Rfd8 21.
h4 Ba6 22. Re3 a4 23. Rh3 a3+ 24. Kc1 d5 25. Nb3 dxe4 26. Qxe4 bxc3 27. Rxc3
Qd6 28. Rxc8 *
Position (FEN): 2Rr2k1/5ppp/b2qp3/6P1/4QP1P/pN5R/P1P5/2K5 b - - 0 28
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1126
Best move: Qd1#