One of the most astonishing mathematical card tricks ever invented dates back over 70 years: given any five cards from a regular deck, it is possible to show just four of them to a friend and magically convey the identity of the fifth. ​ ​It is also possible to switch one of the five cards for a different card in such a way that the friend knows which card is new. It's even possible to show the friend fewer than four cards and have her ID the missing ones, if you play your cards right. ​We will survey a variety of "Given Any Five Cards" scenarios, explaining the diverse mathematical principles involved, as well as "Given Any Four Cards" and even "Given Any Three Cards" counterparts.

Zoom ID 922 7125 3913 and the Zoom Link:  https://dartmouth.zoom.us/j/92271253913?pwd=V28zVVA4S2xiSVVCMFRzckxjNVg3Zz09 Please contact Vladimir Chernov vladimir.chernov@dartmouth.edu for the password