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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

June 20, 2017

June 2017 Puzzle Periodical - Solve the Connection

June 2017 Puzzle Periodical - Solve the Connection; Puzzle created by Wendell W., NSA Mathematician

May 18, 2017

May 2017 Puzzle Periodical - A Plate of 1,000 Cookies

May 2017 Puzzle Periodical - A Plate of 1,000 Cookies; Puzzle created by David B., NSA Mathematician

May 17, 2016

May 2016 Puzzle Periodical

Check out the May Puzzle Periodical to see if you can unlock the right answer for a birthday surprise.