Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 e5 5. Nb3 d5 6. cxd5 Nxd5 7. e3 Bb4+ 8.
Bd2 Nc6 9. Nc3 Nxc3 10. Bxc3 O-O 11. Bxb4 Nxb4 12. Qc1 Bf5 13. Ke2 Rc8 14. Qd2
Bd3+ 15. Kf3 e4+ 16. Kg3 Qg5+ 17. Kh3 h5 18. g3 Qg4+ 19. Kg2 h4 20. Bxd3 h3+
21. Kf1 Nxd3 22. Rc1 Qf3 23. Rg1 Rxc1+ 24. Nxc1 Rd8 25. Nxd3 Rxd3 26. Qe2 Rd1+
27. Qxd1 *
Position (FEN): 6k1/pp3pp1/8/8/4p3/4PqPp/PP3P1P/3Q1KR1 b - - 0 27
Black to move.
Themes: Hanging Piece Endgame Mate in 1 
Puzzle rating: 605
Best move: Qxd1#