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A comment on An Odd Card Trick. Parent comment

Re:An Odd Card Trick by jml7c5 on Friday November 26, 2021 @02:37AM (#29348175)
Is there a name for this in English?
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Re:An Odd Card Trick by grzm on Friday November 26, 2021 @02:39AM (#29348183)
Looks like it's Pearson's Square or the Box Method:

https://chemistry.stackexchange.com/questions/111440/is-ther...

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