Chess puzzle (Checkmate)
Moves: 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qe6+ 4. Be2 Nc6 5. Nf3 Qg6 6. d4 Nb4 7. Bd3 Qxg2
8. Rg1 Qh3 9. Nb5 Qe6+ 10. Be3 Qb6 11. d5 Qa5 12. c3 Nxd3+ 13. Qxd3 a6 14. Nbd4
Qxd5 15. Rg5 f5 16. O-O-O c5 17. Nxf5 Qxf3 18. Nxg7+ Bxg7 19. Rxg7 Bg4 20. Rg1
Rd8 21. Qc2 Be6 22. Rxh7 Rxh7 23. Qxh7 Nf6 24. Qg6+ Bf7 25. Qh6 Ng4 26. Qg5
Nxf2 27. Bxc5 Rd1+ 28. Rxd1 *
Position (FEN): 4k3/1p2pb2/p7/2B3Q1/8/2P2q2/PP3n1P/2KR4 b - - 0 28
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1211
Best move: Qxd1#