13 January 2019

• 18:0418:04, 13 January 2019 diff hist +1 m 2017 AMC 10A Problems →Problem 15

26 December 2018

• 21:1221:12, 26 December 2018 diff hist +42 m 2014 AMC 10B Problems/Problem 23 →Solution 1
• 20:5120:51, 26 December 2018 diff hist +5 m 2014 AMC 10B Problems/Problem 25 →Solution

20 October 2018

• 19:4019:40, 20 October 2018 diff hist +1 m 2008 AMC 8 Problems →Problem 17

13 October 2018

• 16:5816:58, 13 October 2018 diff hist −334 m 2016 AMC 10A Problems/Problem 17 →Solution 2 (Pattern Solution)
• 16:5316:53, 13 October 2018 diff hist −74 m 2016 AMC 10A Problems/Problem 14 →Solution 3
• 16:5116:51, 13 October 2018 diff hist +14 m 2016 AMC 10A Problems/Problem 14 →Solution 1
• 16:5016:50, 13 October 2018 diff hist +1 m 2016 AMC 10A Problems/Problem 14 →Solution 1
• 16:4916:49, 13 October 2018 diff hist +13 m 2016 AMC 10A Problems/Problem 13 →Solution 1
• 16:4816:48, 13 October 2018 diff hist +13 m 2016 AMC 10A Problems/Problem 12 →Solution 2
• 16:4716:47, 13 October 2018 diff hist +13 m 2016 AMC 10A Problems/Problem 12 →Solution 1
• 15:0015:00, 13 October 2018 diff hist +9 m 2017 AMC 8 Problems/Problem 19 →Solution 1

12 October 2018

• 20:1820:18, 12 October 2018 diff hist 0 m 2010 AMC 8 Problems/Problem 14 →Solution
• 20:1420:14, 12 October 2018 diff hist −3 m 2010 AMC 8 Problems/Problem 10 →Problem 10
• 20:1220:12, 12 October 2018 diff hist +1 m 2010 AMC 8 Problems/Problem 10 →Problem 10

7 July 2018

• 16:1216:12, 7 July 2018 diff hist +13 m 2017 AMC 8 Problems/Problem 17 →Solution