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cards:red_black_relationship_principle [2017/06/28 16:57] – external edit 127.0.0.1 | cards:red_black_relationship_principle [2020/08/16 22:12] (current) – reference to date added denisbehr | ||
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This principle makes use of the fact that there is an equal number of red and black cards in the deck. Thus when two piles are formed, one with x cards and the remainder with 52 - x cards, then the number of red cards in x equals the number of black cards in the remainder plus 26 - x. A special case is that the two piles are equal, with 26 cards each, since in that case 26 - x = 0 and thus the red cards in one half equal the black cards in the other half. | This principle makes use of the fact that there is an equal number of red and black cards in the deck. Thus when two piles are formed, one with x cards and the remainder with 52 - x cards, then the number of red cards in x equals the number of black cards in the remainder plus 26 - x. A special case is that the two piles are equal, with 26 cards each, since in that case 26 - x = 0 and thus the red cards in one half equal the black cards in the other half. | ||
- | The roots of the trick can be found in an old puzzle involving the literal mixing of wine and water. David Singmaster has traced this puzzle back to // | + | The roots of the trick can be found in an old puzzle involving the literal mixing of wine and water. David Singmaster has traced this puzzle back to W. Rouse Ball' |
Oscar Weigle published "The Little Star Prediction" | Oscar Weigle published "The Little Star Prediction" | ||
- | Robert Hummer made use of the principle, in expectedly unusual ways. See [[http:// | + | Robert Hummer made use of the principle, in expectedly unusual ways. See [[http:// |
- | Another early use is Warren Wiersbe's "The Perfect Card Prediction" | + | The earliest |
- | The earliest use with unequal packets might be Roy Walton' | + | * [[https://www.conjuringarchive.com/list/category/1740|Category in Denis Behr' |
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- | See also Arthur MacTier' | + | |
{{tag> | {{tag> |