You play the sound 2. Nf3 hoping for a Ruy Lopez, your very favourite opening. Your opponent obliges and the game continues:

2. ... Nc6, 3. Bb5 a6, 4. Ba4 Nf6, 5. d3 Bc5, 6. O-O d6, 7. c3 Bd7, 8. h3 Ba7, 9. Nbd2 h6, 10. Re1 g5, 11. Nh2 h5, 12. Ndf1 g4, 13. h4 Ne7, 14. Ng3 Ng6, 15. Bg5 Bxa4, 16. Qxa4+ Qd7, 17. Qb3 Nh7, 18. Qxb7 O-O, 19. Nxh5 Rfb8, 20. Qd5 c6, 21. Qc4 d5, 22. exd5 g3, 23. Nxg3 cxd5, 24. Qg4 Qxg4, 25. Nxg4 Rxb2, 26. Re2 Rxe2, 27. Nxe2 f6, 28. Bxf6 Bxf2+, 29. Kxf2

In time trouble your opponent blunders with 29. ... Rf8, and you quickly flick in

30. Nh6 checkmate,

You claim your unmentionable stakes and have the most fantastic week of your life.

(Actual game was Gazik, I - Brestak, J. Source was www.chesslab.com which is one of the best chess resources on the web.)