21 April 2025

• 20:3120:31, 21 April 2025 diff hist +338 2025 AIME II Problems/Problem 15 →Solution 2 (AM-GM)
• 07:2807:28, 21 April 2025 diff hist +109 2025 AIME II Problems/Problem 14 →Solution 7 (analytic geometry with roots of unity)

11 April 2025

• 08:0008:00, 11 April 2025 diff hist +72 2025 USAMO Problems/Problem 4 →Solution 5

1 January 2025

• 13:5513:55, 1 January 2025 diff hist 0 2024 AMC 12A Problems/Problem 16 →Solution 5
• 12:4312:43, 1 January 2025 diff hist +44 m 2024 AMC 12A Problems/Problem 16 →Solution 5
• 12:3112:31, 1 January 2025 diff hist +816 2024 AMC 12A Problems/Problem 16 →Solution 4

4 September 2024

• 07:2307:23, 4 September 2024 diff hist +57 2005 IMO Problems/Problem 5 →Solution (Video Solution) current
• 07:2107:21, 4 September 2024 diff hist +37 2005 IMO Problems/Problem 5 No edit summary

2 September 2024

• 22:1422:14, 2 September 2024 diff hist +77 1997 USAMO Problems/Problem 5 →Solution 3

24 August 2024

• 09:3409:34, 24 August 2024 diff hist +108 2024 IMO Problems/Problem 4 →Video Solution
• 09:2009:20, 24 August 2024 diff hist +114 m 1974 USAMO Problems/Problem 2 No edit summary current

20 February 2020

• 16:1016:10, 20 February 2020 diff hist +3,046 2019 USAMO Problems/Problem 6 No edit summary current

17 February 2020

• 13:3813:38, 17 February 2020 diff hist +857 2013 AIME II Problems/Problem 12 No edit summary

15 February 2020

• 09:5209:52, 15 February 2020 diff hist +630 2013 AIME I Problems/Problem 5 No edit summary

14 February 2020

• 22:4222:42, 14 February 2020 diff hist +1,195 2012 AIME I Problems/Problem 13 No edit summary

11 February 2020

• 13:1713:17, 11 February 2020 diff hist +1,098 2001 AIME I Problems/Problem 12 No edit summary

3 February 2020

• 15:4015:40, 3 February 2020 diff hist +676 2000 AIME I Problems/Problem 10 No edit summary

21 May 2018

• 14:1614:16, 21 May 2018 diff hist −85 1973 USAMO Problems/Problem 4 →Solution 3

18 May 2018

• 16:4816:48, 18 May 2018 diff hist +519 1973 USAMO Problems/Problem 4 No edit summary
• 15:4915:49, 18 May 2018 diff hist +1,124 1987 USAMO Problems/Problem 3 →Solution current
• 07:3207:32, 18 May 2018 diff hist +311 m 1985 USAMO Problems/Problem 2 →Solution current
• 06:3806:38, 18 May 2018 diff hist +3,440 1985 USAMO Problems/Problem 2 New solution

16 May 2018

• 15:3915:39, 16 May 2018 diff hist +334 1978 USAMO Problems/Problem 1 No edit summary
• 13:5713:57, 16 May 2018 diff hist +456 1974 USAMO Problems/Problem 2 No edit summary
• 10:5510:55, 16 May 2018 diff hist +993 2013 USAMO Problems/Problem 4 No edit summary