29 September 2019

• 14:4514:45, 29 September 2019 diff hist −15 m 2014 AMC 10A Problems →Problem 12
• 14:4414:44, 29 September 2019 diff hist +7 m 2014 AMC 10A Problems/Problem 11 →Solution 1

23 August 2019

• 18:2618:26, 23 August 2019 diff hist 0 1950 AHSME Problems →Problem 16
• 18:2518:25, 23 August 2019 diff hist 0 1950 AHSME Problems/Problem 16 →Problem

17 August 2019

• 10:3510:35, 17 August 2019 diff hist 0 m 2018 AMC 8 Problems →Problem 5

16 August 2019

• 20:5420:54, 16 August 2019 diff hist −5 m 2014 AMC 10A Problems/Problem 22 →Solution 2 (Without Trigonometry)

12 August 2019

• 18:5418:54, 12 August 2019 diff hist +2 m 2002 AIME II Problems/Problem 1 →Solution