11 November 2018

• 22:3222:32, 11 November 2018 diff hist +2 m 2012 AMC 12B Problems/Problem 23 →Solution 2

4 November 2018

• 18:3318:33, 4 November 2018 diff hist +231 2001 AMC 12 Problems/Problem 11 →Solution 2

3 November 2018

• 15:1915:19, 3 November 2018 diff hist −4 m 2001 AMC 12 Problems/Problem 11 →Solution 2

23 October 2018

• 21:3021:30, 23 October 2018 diff hist −9 m 2015 AMC 8 Problems/Problem 17 →Solution 4
• 21:2921:29, 23 October 2018 diff hist −10 m 2015 AMC 8 Problems/Problem 17 →Solution 4
• 21:2721:27, 23 October 2018 diff hist +6 m 2015 AMC 8 Problems/Problem 17 →Solution 4
• 21:2521:25, 23 October 2018 diff hist +403 2015 AMC 8 Problems/Problem 17 →Solution 3

16 February 2018

• 22:0122:01, 16 February 2018 diff hist +17 m 2018 AMC 10B Problems/Problem 9 →Solution 3 (Simple Logic)
• 22:0022:00, 16 February 2018 diff hist +289 2018 AMC 10B Problems/Problem 9 →Solution 2