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NSA's Puzzle Periodical

Intelligence. It's the ability to think abstractly. Challenge the unknown. Solve the impossible. 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 this month's problem written by a member of our expert workforce.

Oct. 16, 2018

October 2018 Puzzle Periodical - Connection Inspection

NSA Puzzle Periodical for October 2018: Connection Inspection

Sept. 18, 2018

September 2018 Puzzle Periodical - The F Sequence

NSA Puzzle Periodical for September 2018: The F Sequence

Aug. 21, 2018

August 2018 Puzzle Periodical - Crop Calculations

NSA Puzzle Periodical for August 2018: Crop Calculations

July 17, 2018

July 2018 Puzzle Periodical - Marble Math

NSA Puzzle Periodical for July 2018: Marble Math

June 19, 2018

June 2018 Puzzle Periodical - Mug Math

NSA Puzzle Periodical for June 2018: Mug Math

May 15, 2018

May 2018 Puzzle Periodical - Shall We Play a Game? Computer Tic-Tac-Toe

NSA Puzzle Periodical for May 2018: Computer Tic-Tac-Toe

April 17, 2018

April 2018 Puzzle Periodical - 'APRIL = MATH'

April 2018 NSA Puzzle Periodical - 'APRIL = MATH' - Mathematics and Statistics Awareness Month Challenge by Benjamin E.

March 20, 2018

March 2018 Puzzle Periodical - a, b, c - Variable Alphabet Equation

March 2018 NSA Puzzle Periodical - a, b, c - Variable Alphabet Equation by Wendell W.

Feb. 20, 2018

February 2018 Puzzle Periodical - A Plethora of Penguins

February 2018 Puzzle Periodical; Puzzle created by David B., NSA Mathematician

Jan. 16, 2018

January 2018 Puzzle Periodical - Snow Manipulation

January 2018 Puzzle Periodical; Puzzle created by James M., NSA Operations Researcher