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In the 1960s, Stefan Mandel was living in communist Romania on a meager salary, dreaming of escape. But this wasn't just any dreamer—Mandel was an economist with a knack for numbers. He realized something profound: under certain conditions, the lottery wasn't gambling at all. It was math.

Mandel developed what he called "combinatorial condensation," a complex algorithm that reduced the number of combinations needed to guarantee a win. Instead of buying tickets randomly, he identified lotteries where the jackpot exceeded the cost of buying every possible combination of numbers. The key was finding smaller lotteries with manageable odds and massive jackpots relative to the total number of combinations.

In 1964, he pooled money from friends and investors, bought thousands of tickets covering strategic combinations, and won his first lottery. After paying his investors and taxes, Mandel had enough to bribe his way out of Romania and start fresh in Israel, then Australia. That first win was a proof-of-concept that would fund an empire.

Scaling Up The System

Once settled in Australia, Mandel refined his operation into something extraordinary. He formed a lottery syndicate with thousands of investors across multiple countries and used computer algorithms to print millions of tickets covering every possible combination for specific lottery draws. The strategy was labor-intensive but straightforward: target lotteries where the jackpot was at least three times the cost of buying all combinations, ensuring profit even after expenses and sharing with investors.

Between the late 1980s and early 1990s, Mandel's syndicate won twelve lotteries across Australia and Europe. But his most audacious move came in 1992 when he targeted the Virginia Lottery. The jackpot swelled to $27 million while there were only 7.1 million possible combinations at one dollar each. The math was irresistible.

Mandel's team flew to Virginia and scrambled to buy tickets at retailers across the state, racing against the clock to cover all combinations. They printed tickets around the clock at different locations, ultimately purchasing around 5 million of the 7.1 million possible combinations before time ran out. Fortune smiled anyway—they held the only winning ticket.

The End Of An Era

Santeri Viinamäki on Wikimedia

This man’s remarkable run eventually attracted attention from lottery authorities and government agencies worldwide. The IRS, FBI, and CIA all investigated him, convinced that something illegal must be happening. They found nothing. He'd simply outthought the system and operated entirely within existing regulations.

However, his success prompted lawmakers to act swiftly. Today, Mandel's strategy is virtually impossible to replicate. Laws now prohibit bulk ticket buying, ban computer-printed tickets in many jurisdictions, and impose restrictions designed specifically to prevent anyone from repeating his formula. Some lotteries even changed their formats to create so many combinations that covering them all would be financially ruinous, even with a massive jackpot.

Mandel, now in his nineties and living quietly on a tropical island he purchased with his winnings, never faced criminal charges.