31 March 2016

• 13:3013:30, 31 March 2016 diff hist +100 2014 AMC 10B Problems/Problem 24 →Solution 2

26 December 2015

• 20:4320:43, 26 December 2015 diff hist +37 2008 AMC 10B Problems/Problem 19 →Solution

25 December 2015

• 21:1921:19, 25 December 2015 diff hist 0 m 2006 AMC 10B Problems/Problem 19 →Solution 2

24 December 2015

• 12:2912:29, 24 December 2015 diff hist +2 2005 AMC 10A Problems/Problem 23 →Solution 3
• 12:2912:29, 24 December 2015 diff hist +14 2005 AMC 10A Problems/Problem 23 →Solution 3
• 12:2312:23, 24 December 2015 diff hist +3 2005 AMC 10B Problems/Problem 24 →Solution 2

11 August 2015

• 15:4015:40, 11 August 2015 diff hist +11 m 2006 AMC 10B Problems/Problem 19 →Solution 1