Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. f4 Nc6 3. Nf3 g6 4. Bc4 Bg7 5. c3 e6 6. d4 d5 7. exd5 exd5 8. Bb5
cxd4 9. Nxd4 Ne7 10. O-O O-O 11. Nxc6 bxc6 12. Bd3 Qb6+ 13. Kh1 Nf5 14. Bxf5
Bxf5 15. Nd2 Rfe8 16. Nf3 Re7 17. Ne5 Rae8 18. Re1 f6 19. Be3 Qxb2 20. Nxc6
Rxe3 21. Rxe3 Rxe3 22. Qxd5+ Be6 23. Qd8+ Bf8 24. Rd1 Qxc3 25. Qe8 Re1+ 26.
Rxe1 *
Position (FEN): 4Qbk1/p6p/2N1bpp1/8/5P2/2q5/P5PP/4R2K b - - 0 26
Black to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 482
Best move: Qxe1#