دوري رابطة الألغاز الوطني
المصادر

↑  "Solution of Hard Puzzles Held As Aid To Education; League of Students Who Study Subject Believe That Mental Exercise Is Useful — Large Number of Persons Find Diversion in Seeking Difficult Answers". نيويورك تايمز. 16 سبتمبر 1923. ص. XX3. مؤرشف من الأصل في 2018-06-16. اطلع عليه بتاريخ 2008-08-24.
↑  "Puzzlers' League Opens 3-Day Test; 'Woman Hitler,' the First Offer, Is Answered by a Woman in Fifteen Seconds. Cross-Words Spurned: They Are Praised, However, by Anagram Solver, as Making Nation 'Word Conscious.'". نيويورك تايمز. 22 فبراير 1936. ص. 17. مؤرشف من الأصل في 2018-06-16. اطلع عليه بتاريخ 2008-08-24.
↑  Spurrier, Robert D. (يوليو 1983). "A Passion for Puzzling: The National Puzzlers' League Turns 100". Games Magazine. Playboy Enterprises.
↑  "Solution of Hard Puzzles Held As Aid To Education; League of Students Who Study Subject Believe That Mental Exercise Is Useful — Large Number of Persons Find Diversion in Seeking Difficult Answers". نيويورك تايمز. 16 سبتمبر 1923. ص. XX3. مؤرشف من الأصل في 2023-03-21. اطلع عليه بتاريخ 2008-08-24."Solution of Hard Puzzles Held As Aid To Education; League of Students Who Study Subject Believe That Mental Exercise Is Useful — Large Number of Persons Find Diversion in Seeking Difficult Answers". New York Times. 1923-09-16. p. XX3. Retrieved 2008-08-24.
1 2  "Puzzlers' League Opens 3-Day Test; 'Woman Hitler,' the First Offer, Is Answered by a Woman in Fifteen Seconds. Cross-Words Spurned: They Are Praised, However, by Anagram Solver, as Making Nation 'Word Conscious.'". نيويورك تايمز. 22 فبراير 1936. ص. 17. مؤرشف من الأصل في 2023-03-21. اطلع عليه بتاريخ 2008-08-24."Puzzlers' League Opens 3-Day Test; 'Woman Hitler,' the First Offer, Is Answered by a Woman in Fifteen Seconds. Cross-Words Spurned: They Are Praised, However, by Anagram Solver, as Making Nation 'Word Conscious.'". New York Times. 1936-02-22. p. 17. Retrieved 2008-08-24.
1 2 3 4  Spurrier, Robert D. (يوليو 1983). "A Passion for Puzzling: The National Puzzlers' League Turns 100". Games Magazine. Playboy Enterprises.Spurrier, Robert D. (July 1983). "A Passion for Puzzling: The National Puzzlers' League Turns 100". Games Magazine. Playboy Enterprises.
↑  Eckler, A. Ross Jr. (1998). The National Puzzlers' League, The First 115 Years. نيويورك: National Puzzlers' League. ص. 215.
↑  Hinman، Tyler (12 يونيو 2010). "National Puzzlers' League Convention: A Preview". Wired. مؤرشف من الأصل في 2021-02-11. اطلع عليه بتاريخ 2017-08-08.
↑  Routhier، Ray (15 يوليو 2013). "National Puzzlers' convention coming to Portland". The Press-Herald. مؤرشف من الأصل في 2018-06-16. اطلع عليه بتاريخ 2017-08-08.
↑  Hiltner، Stephen (1 أغسطس 2017). "Will Shortz: A Profile of a Lifelong Puzzle Master". The New York Times. مؤرشف من الأصل في 2020-11-12. اطلع عليه بتاريخ 2017-08-08.
↑  Baker، Billy (8 يوليو 2017). "Can you figure this out? At the puzzle convention, that's the whole idea". The Boston Globe. مؤرشف من الأصل في 2021-07-31. اطلع عليه بتاريخ 2017-08-08.
↑  Hinman، Tyler (12 يونيو 2010). "National Puzzlers' League Convention: A Preview". Wired. مؤرشف من الأصل في 2023-03-21. اطلع عليه بتاريخ 2017-08-08.Hinman, Tyler (June 12, 2010). "National Puzzlers' League Convention: A Preview". Wired. Retrieved 8 August 2017.
↑  "BeaCon". National Puzzler's League website. مؤرشف من الأصل في 2021-07-31. اطلع عليه بتاريخ 2017-08-08.
↑  Baker، Billy (8 يوليو 2017). "Can you figure this out? At the puzzle convention, that's the whole idea". The Boston Globe. مؤرشف من الأصل في 2023-03-21. اطلع عليه بتاريخ 2017-08-08.Baker, Billy (July 8, 2017). "Can you figure this out? At the puzzle convention, that's the whole idea". The Boston Globe. Retrieved 8 August 2017.