4 January 2020

• 17:3817:38, 4 January 2020 diff hist 0 m 2015 AMC 12B Problems/Problem 24 →Solution

3 January 2020

• 15:0815:08, 3 January 2020 diff hist +14 m 2016 AMC 12B Problems/Problem 20 →Solution 1

16 February 2019

• 13:2113:21, 16 February 2019 diff hist +15 m 2019 AMC 10B Problems/Problem 23 →Solution 3

15 February 2019

• 11:3611:36, 15 February 2019 diff hist +24 m 2019 AMC 12B Problems/Problem 17 →Solution 1
• 11:3011:30, 15 February 2019 diff hist +7 m 2019 AMC 10B Problems/Problem 1 →Solution 2

14 February 2019

• 14:5414:54, 14 February 2019 diff hist −16 m 2019 AMC 12B Problems/Problem 17 →Solution
• 14:5314:53, 14 February 2019 diff hist +243 m 2019 AMC 12B Problems/Problem 17 →Solution
• 14:3814:38, 14 February 2019 diff hist +11 m 2019 AMC 12B Problems/Problem 3 →Solution
• 14:3614:36, 14 February 2019 diff hist +223 2019 AMC 12B Problems/Problem 3 →Solution