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Oct. 16, 2018

October 2018 Puzzle Periodical - Connection Inspection

NSA Puzzle Periodical for October 2018: Connection Inspection

Oct. 17, 2017

October 2017 Puzzle Periodical - Jumping Kangaroos

October 2017 Puzzle Periodical - Jumping Kangaroos; Puzzle created by David B., NSA Mathematician

Oct. 18, 2016

October Puzzle Periodical - CyberChance

NSA's Puzzle Periodical

Oct. 2, 2015

October 2015 Puzzle Periodical

October 2015 Puzzle Periodical; Puzzle created by Ben E., Applied Research Mathematician, NSA