Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. d3 d6 5. Bg5 h6 6. Bxf6 Qxf6 7. Nd5 Qd8 8.
Be2 Be6 9. d4 exd4 10. Nxd4 Nxd4 11. Qxd4 Bxd5 12. Qxd5 c6 13. Qd3 Qg5 14. O-O
Be7 15. f4 Qg6 16. Rf3 O-O 17. f5 Qg5 18. Rg3 Qf6 19. c3 Rad8 20. Rd1 d5 21.
exd5 Rxd5 22. Qf3 Rfd8 23. Rxd5 Rxd5 24. Bd3 Bc5+ 25. Kf1 Re5 26. Qf4 Qe7 27.
f6 *
Position (FEN): 6k1/pp2qpp1/2p2P1p/2b1r3/5Q2/2PB2R1/PP4PP/5K2 b - - 0 27
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 803
Best move: Re1#