Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. Bc4 d5 3. exd5 exd5 4. Bb3 Nf6 5. d3 Bd6 6. h3 O-O 7. Nf3 Re8+ 8.
Kf1 h6 9. Nc3 c6 10. Ne2 Nbd7 11. a4 Ne5 12. Nxe5 Bxe5 13. d4 Bd6 14. c3 Ne4
15. Bc2 Qf6 16. f3 Ng3+ 17. Nxg3 Bxg3 18. Bd2 Bf5 19. Bxf5 Qxf5 20. h4 Qf6 21.
h5 Re6 22. Rh3 Bd6 23. Qc2 Rae8 24. Re1 Rxe1+ 25. Bxe1 Qe6 26. Bg3 Bxg3 27.
Rxg3 *
Position (FEN): 4r1k1/pp3pp1/2p1q2p/3p3P/P2P4/2P2PR1/1PQ3P1/5K2 b - - 0 27
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 399
Best move: Qe1#