This could be the most extraordinary lottery story ever told. Stefan Mandel, a Romanian math expert, spent years finding a way to win a large lottery jackpot. Then suddenly in Melbourne, Australia, he chanced on the exact conditions for his formula and sprang into action. What happened next was the stuff of dreams. Watch to see exactly how he did it, and the result of his enormous bet. It'll simply leave you in astonishment at his audacity and huge ambition.