Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. c3 g6 3. d4 Qb6 4. Nf3 Bg7 5. Na3 Nf6 6. e5 Ne4 7. Bd3 d5 8. exd6
Nxd6 9. Be3 cxd4 10. Bxd4 Bxd4 11. Qa4+ Nc6 12. Nxd4 O-O 13. Nxc6 bxc6 14. Qc2
Bf5 15. Bxf5 Nxf5 16. O-O Rad8 17. Rad1 Qc5 18. b4 Qb6 19. Nc4 Qc7 20. a4 Rd5
21. Rd3 Rfd8 22. Rfd1 Qd7 23. Nb2 Qe6 24. Rxd5 Rxd5 25. Rxd5 *
Position (FEN): 6k1/p3pp1p/2p1q1p1/3R1n2/PP6/2P5/1NQ2PPP/6K1 b - - 0 25
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 550
Best move: Qe1#