13 April 2020

• 16:2416:24, 13 April 2020 diff hist +523 1975 AHSME Problems/Problem 29 →Solution(Very Stupid)

25 March 2020

• 18:4818:48, 25 March 2020 diff hist +61 Base numbers/Conversion →Resources

8 January 2020

• 20:0320:03, 8 January 2020 diff hist +51 m 2009 AMC 12A Problems/Problem 22 →Solution

21 February 2019

• 14:4614:46, 21 February 2019 diff hist +1 m 1985 AIME Problems/Problem 12 →Solutions
• 14:4514:45, 21 February 2019 diff hist +455 1985 AIME Problems/Problem 12 →Solution 3

26 November 2017

• 01:3801:38, 26 November 2017 diff hist 0 m 2014 AMC 8 Problems/Problem 13 →Solution
• 01:3701:37, 26 November 2017 diff hist 0 m 2014 AMC 8 Problems/Problem 13 →Solution

16 May 2017

• 23:1223:12, 16 May 2017 diff hist −3 m 2013 AMC 8 Problems/Problem 7 →Solution 1