29 June 2021

• 09:2509:25, 29 June 2021 diff hist +1 m 1995 IMO Problems/Problem 1 →Solution

9 May 2021

• 20:4920:49, 9 May 2021 diff hist 0 m 2020 AIME II Problems/Problem 10 →Solution 5

11 February 2021

• 18:5718:57, 11 February 2021 diff hist +13 m 2021 AMC 12B Problems/Problem 18 →Solution 1
• 18:5618:56, 11 February 2021 diff hist 0 m 2021 AMC 12B Problems/Problem 18 →Problem 18
• 18:5518:55, 11 February 2021 diff hist 0 m 2021 AMC 12B Problems →Problem 18
• 18:4518:45, 11 February 2021 diff hist +558 2021 AMC 10B Problems/Problem 1 →Solution 2
• 18:4418:44, 11 February 2021 diff hist +558 2021 AMC 12B Problems/Problem 1 →Solution
• 18:2518:25, 11 February 2021 diff hist +339 2021 AMC 12B Problems/Problem 4 →Solution

12 June 2020

• 15:4615:46, 12 June 2020 diff hist +10 AMC historical results →AIME II
• 15:3615:36, 12 June 2020 diff hist +1,714 2020 AIME II Problems/Problem 10 →Problem