The Irish National Lottery format used to be 36 choose 6, giving odds of a jackpot win at 1 in 1,947,792. The cost of a single ticket was £0.50; therefore you could buy up the entire "space" for £973,896.
Thus, when the jackpot rose above this value, it became economically viable to buy up the entire "space" to guarantee a win; this would result in a profit so as long as no one else bought a winning ticket. This is what a group of individuals attempted to do in May 1992.[0]
They were limited by the physical requirement of filling out all such possible combinations on the paper tickets, but they attempted to spread out the work by pre-filling out combinations over several months and waiting for the jackpot to rise to a large value before "deploying" the tickets.
Not quite. Covering the space only guarantees you a share of the jackpot - it wasn't unknown for there to be more than 5 winners especially when the jackpot was big as ticket sales skyrocketed What made the play profitable was the introduction of novelty guaranteed amounts for matching 5 and 4 numbers - regardless of the number of winners.
Thus, when the jackpot rose above this value, it became economically viable to buy up the entire "space" to guarantee a win; this would result in a profit so as long as no one else bought a winning ticket. This is what a group of individuals attempted to do in May 1992.[0]
They were limited by the physical requirement of filling out all such possible combinations on the paper tickets, but they attempted to spread out the work by pre-filling out combinations over several months and waiting for the jackpot to rise to a large value before "deploying" the tickets.
0. https://en.wikipedia.org/wiki/National_Lottery_(Ireland)#His...