Thank you. This is a much better article since it actually lays out and explains the reasoning behind the solution, as opposed to blandly stating "it has something to do with e" and padding up the rest of the note with grotesque drawings and minutiae.

(Also I appreciate what seems to me the less stridently gendered tone of the American Scientist article. Just a personal and subjective opinion though, so please be tolerant and try not jump on the hate.)

Can anyone point out the strategy to the example for 2 cards in the range [1,100] and the probability of winning?