5 February 2019

• 22:5122:51, 5 February 2019 diff hist +32 m 2006 AMC 10A Problems →Problem 24

14 August 2017

• 22:4522:45, 14 August 2017 diff hist −4 m 2007 AMC 12A Problems/Problem 5 →HCR solution
• 22:4422:44, 14 August 2017 diff hist −98 m 2007 AMC 12A Problems/Problem 5 →Problem
• 22:4322:43, 14 August 2017 diff hist −22 m 2007 AMC 12A Problems/Problem 5 →HCR solution
• 22:3922:39, 14 August 2017 diff hist +4 m 2007 AMC 12A Problems/Problem 5 →Solution
• 22:3822:38, 14 August 2017 diff hist +3 m 2007 AMC 12A Problems/Problem 5 →Problem
• 22:3722:37, 14 August 2017 diff hist +7 m 2007 AMC 12A Problems/Problem 5 →Solution
• 22:3622:36, 14 August 2017 diff hist +68 m 2007 AMC 12A Problems/Problem 5 →Problem

14 February 2017

• 01:2801:28, 14 February 2017 diff hist +10 2003 AIME II Problems/Problem 13 →Solution 1

22 November 2015

• 22:4822:48, 22 November 2015 diff hist +4 2000 AMC 12 Problems/Problem 25 →Solution 1

25 October 2015

• 23:0323:03, 25 October 2015 diff hist 0 2012 AMC 8 Problems/Problem 14 →Solution