all matching

All or Nothing is the name and format of a lottery game where the player chooses half of the numbers in play. Prizes are awarded based on how many of the numbers chosen match the numbers in the official draw. Because the player chooses half of the number matrix, the odds of selecting all numbers drawn and of selecting none of the numbers drawn are identical. Subsequently, identical top prizes are awarded for matching all numbers or nothing, hence the name. Smaller prizes are likewise symmetrical, with the second-prize tier being awarded for matching all but one number, or only one number, and so on. The concept originated in 2012 with the Texas Lottery, and has since been adopted by other states.

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