6 July 2021

• 19:3019:30, 6 July 2021 diff hist +15 m 2021 AIME I Problems/Problem 2 →Solution 1 (Similar Triangles)

3 May 2021

• 14:4614:46, 3 May 2021 diff hist +323 2007 AIME I Problems/Problem 5 →Solution 4

25 March 2021

• 14:3914:39, 25 March 2021 diff hist +109 2003 AIME II Problems/Problem 3 →Solution 3 (Recursion)
• 14:3814:38, 25 March 2021 diff hist +13 2003 AIME II Problems/Problem 2 →Solution
• 13:2013:20, 25 March 2021 diff hist +74 2004 AIME I Problems/Problem 5 →Simple Solution

22 March 2021

• 17:0117:01, 22 March 2021 diff hist +3,938 2021 AIME II Problems/Problem 12 →Solution 1

13 March 2021

• 08:5408:54, 13 March 2021 diff hist +1 2021 AIME I Problems/Problem 2 →Solution 1 (Similar Triangles)
• 08:5308:53, 13 March 2021 diff hist +1 2021 AIME I Problems/Problem 2 →Solution 1 (Similar Triangles)

12 March 2021

• 20:2920:29, 12 March 2021 diff hist −13 2021 AIME I Problems/Problem 15 →Solution
• 08:2608:26, 12 March 2021 diff hist +1 2021 AIME I Problems/Problem 5 →Solution
• 08:2608:26, 12 March 2021 diff hist +82 2021 AIME I Problems/Problem 5 →Solution 2
• 08:2508:25, 12 March 2021 diff hist +77 2021 AIME I Problems/Problem 5 →Solution 2

11 March 2021

• 17:5817:58, 11 March 2021 diff hist +1 2021 AIME I Problems/Problem 2 →Solution (Similar Triangles)
• 17:5817:58, 11 March 2021 diff hist +11 2021 AIME I Problems/Problem 2 →Solution (Similar Triangles)
• 17:3917:39, 11 March 2021 diff hist +20 2021 AIME I Problems/Problem 2 →Solution
• 17:3817:38, 11 March 2021 diff hist +2 2021 AIME I Problems/Problem 2 →Solution
• 17:3717:37, 11 March 2021 diff hist +815 2021 AIME I Problems/Problem 2 →Solution

7 January 2021

• 17:0517:05, 7 January 2021 diff hist +4 m 2011 AMC 10B Problems →Problem 16

26 December 2020

• 11:1011:10, 26 December 2020 diff hist −29 2016 AMC 10B Problems/Problem 24 →Case 2

18 November 2020

• 12:2012:20, 18 November 2020 diff hist +6 m 2020 AMC 8 Problems/Problem 24 →Solution 1