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April 21, 2016
April 2016 Puzzle Periodical
April 2016 Puzzle Periodical; Puzzle created by Andy F., Applied Research Mathematician, NSA
Oct. 2, 2015
October 2015 Puzzle Periodical
October 2015 Puzzle Periodical; Puzzle created by Ben E., Applied Research Mathematician, NSA
Sept. 15, 2015
September 2015 Puzzle Periodical
September 2015 Puzzle Periodical; Puzzle created by Tim C., Applied Research Mathematician, NSA
Aug. 18, 2015
August 2015 Puzzle Periodical
August 2015 Puzzle Periodical; Puzzle created by Roger B., Cryptanalytic Mathematician, NSA
July 21, 2015
Announcing NSA's Puzzle Periodical
NSA employees work on some of the world‘s most demanding and exhilarating high-tech engineering challenges. Applying complex algorithms and expressing difficult cryptographic problems in terms of mathematics is part of the work NSA employees do every day. Try your hand at a problem written by a member of our expert workforce.
July 2015 Puzzle Periodical
July 2015 Puzzle Periodical; Puzzle created by Stephen C., Applied Research Mathematician, NSA