Chess puzzle (Checkmate)
Moves: 1. d4 e5 2. dxe5 Nc6 3. Nf3 d6 4. exd6 Bxd6 5. c3 Bg4 6. Qa4 Nf6 7. Nd4 Bd7 8.
Qc2 O-O 9. Bg5 Bc5 10. e3 Bxd4 11. cxd4 Re8 12. Be2 Nxd4 13. exd4 Bb5 14. Nc3
Bxe2 15. Nxe2 Qe7 16. Be3 Nd5 17. O-O Nxe3 18. fxe3 Qxe3+ 19. Rf2 Re6 20. Ng3
Rae8 21. Rf1 Qxd4 22. Qxc7 Rf6 23. Qxb7 h5 24. Qb5 Re1 25. Nf5 Rxf1+ 26. Kxf1 *
Position (FEN): 6k1/p4pp1/5r2/1Q3N1p/3q4/8/PP3RPP/5K2 b - - 0 26
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 591
Best move: Qd1#