28 December 2020

• 11:3311:33, 28 December 2020 diff hist −3 2017 AMC 10A Problems/Problem 23 →Solution
• 11:3211:32, 28 December 2020 diff hist +58 m 2017 AMC 10A Problems/Problem 23 →Solution

12 December 2020

• 15:2515:25, 12 December 2020 diff hist 0 m 2011 AMC 10B Problems/Problem 19 →Solution 1

8 December 2020

• 07:4407:44, 8 December 2020 diff hist +1 2008 AMC 10B Problems/Problem 22 →Solution 1(Order Matters)
• 07:4307:43, 8 December 2020 diff hist +23 2008 AMC 10B Problems/Problem 22 →Solution 2
• 07:4307:43, 8 December 2020 diff hist +15 m 2008 AMC 10B Problems/Problem 22 →Solution 1

22 November 2020

• 10:3110:31, 22 November 2020 diff hist 0 2018 AMC 10B Problems/Problem 16 →Solution 5 (Nicomachus' Theorem)