Chess puzzle (Checkmate)
Moves: 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Be2 Bxe2 5. Nxe2 Qxd5 6. O-O Nc6 7. Nbc3 Qf5
8. Ng3 Qg6 9. a3 h5 10. d5 O-O-O 11. Bf4 e6 12. Qf3 Nxd5 13. Nce4 Nxf4 14. Qxf4
h4 15. Ne2 e5 16. Qe3 f5 17. N4c3 Nd4 18. Rac1 Bc5 19. Qxe5 Nxe2+ 20. Nxe2 b6
21. Nf4 Qh6 22. Qxf5+ Kb8 23. Rcd1 Rxd1 24. Rxd1 Rf8 25. Qe4 Qxf4 26. Rd8+ Rxd8
27. Qxf4 *
Position (FEN): 1k1r4/p1p3p1/1p6/2b5/5Q1p/P7/1PP2PPP/6K1 b - - 0 27
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 617
Best move: Rd1#