11 February 2019

• 20:2920:29, 11 February 2019 diff hist +6 m 2019 AMC 10A Problems/Problem 10 →Solution 2 (Troll)

5 February 2017

• 16:4316:43, 5 February 2017 diff hist +2 m 2013 AMC 10A Problems/Problem 24 →Solution 1

4 February 2017

• 14:4914:49, 4 February 2017 diff hist −1 m 2013 AMC 10A Problems/Problem 20 →Solution 2

28 January 2017

• 15:4715:47, 28 January 2017 diff hist −5 m 2013 AMC 10A Problems/Problem 7 →Solution 1
• 14:2514:25, 28 January 2017 diff hist −19 m 2013 AMC 10B Problems/Problem 25 →Shortcut

19 January 2017

• 16:5116:51, 19 January 2017 diff hist +4 2005 AMC 12B Problems/Problem 6 →Solution
• 16:5016:50, 19 January 2017 diff hist +41 2005 AMC 12B Problems/Problem 6 →Solution