12 February 2017

• 12:0812:08, 12 February 2017 diff hist 0 2017 AMC 12A Problems/Problem 16 →Solution 4

11 February 2017

• 22:4822:48, 11 February 2017 diff hist −1 m 2017 AMC 12A Problems/Problem 16 →Solution 4
• 22:4722:47, 11 February 2017 diff hist −39 2017 AMC 12A Problems/Problem 16 →Solution 4

21 January 2017

• 19:4019:40, 21 January 2017 diff hist +857 2007 AIME II Problems/Problem 3 →Solution

18 January 2017

• 18:5518:55, 18 January 2017 diff hist +5 2016 AMC 10B Problems/Problem 16 →Solution 3

23 September 2016

• 18:3818:38, 23 September 2016 diff hist +1 2011 AMC 10B Problems/Problem 10 →Solution 2
• 18:3818:38, 23 September 2016 diff hist +316 2011 AMC 10B Problems/Problem 10 →Solution

17 March 2016

• 15:0915:09, 17 March 2016 diff hist +370 2016 AMC 10A Problems/Problem 2 →Solution

5 February 2016

• 08:0108:01, 5 February 2016 diff hist +198 2016 AMC 10A Problems/Problem 1 →Solution