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Cracking the Scratch Lottery Code

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mouser:
Another great true life story of someone who saw a flaw in a gambling game and how they figured it out and exploited it.  God I love these kinds of articles.

Srivastava realized that the same logic could be applied to the lottery. The apparent randomness of the scratch ticket was just a facade, a mathematical lie. And this meant that the lottery system might actually be solvable, just like those mining samples. “At the time, I had no intention of cracking the tickets,” he says. He was just curious about the algorithm that produced the numbers. Walking back from the gas station with the chips and coffee he’d bought with his winnings, he turned the problem over in his mind. By the time he reached the office, he was confident that he knew how the software might work, how it could precisely control the number of winners while still appearing random...

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http://www.wired.com/magazine/2011/01/ff_lottery/

mouser:
I love this part:

Instead of secretly plundering the game, he decided to go to the Ontario Lottery and Gaming Corporation. Srivastava thought its top officials might want to know about his discovery. Who knows, maybe they’d even hire him to give them statistical advice. “People often assume that I must be some extremely moral person because I didn’t take advantage of the lottery,” he says. “I can assure you that that’s not the case. I’d simply done the math and concluded that beating the game wasn’t worth my time.”
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zridling:
Not sure I agree with his morality. Given that lotteries prey on the hopes of those who most need the cash -- and who can least afford to part with what little they have -- Srivastava should have at least tried to make a million or two just to "confirm" his results.

tomos:
a good read !

Not sure I agree with his morality. Given that lotteries prey on the hopes of those who most need the cash -- and who can least afford to part with what little they have -- Srivastava should have at least tried to make a million or two just to "confirm" his results.
-zridling (February 02, 2011, 05:47 AM)
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he says it was a practical decision (but maybe he's just being defensive about his morality!) - he reckoned he could earn 600$ a day with it but he earned more as a contracter. Probably not so much fun either to be scanning all these tickets for patterns in the numbers.

Interesting, at the end of the article they talk about a woman who won at least four big prizes, each with odds of around 1 to a million. Maybe she cracked something bigger...

Renegade:
Not sure I agree with his morality. Given that lotteries prey on the hopes of those who most need the cash -- and who can least afford to part with what little they have -- Srivastava should have at least tried to make a million or two just to "confirm" his results.
-zridling (February 02, 2011, 05:47 AM)
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+1

Absolutely. It was reckless of him to go to them with such flimsy evidence~! :D

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