Online registration is closed for this event. If available, tickets on the day of the event may incur an additional charge.

See photos of MathHappening: Puzzle on the Plaza and the solution to the puzzle by clicking here.

December 21, 2016 6:00 pm   through   7:00 pm
Flatiron North Plaza
E. 23rd St, between Broadway and 5th Ave
New York, NY 10010
United States

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