8 February 2020

• 22:0222:02, 8 February 2020 diff hist +66 2020 AMC 10B Problems/Problem 24 →Solution 5

1 February 2020

• 23:1923:19, 1 February 2020 diff hist +5 2020 AMC 10A Problems/Problem 13 →Video Solution
• 23:1823:18, 1 February 2020 diff hist 0 2020 AMC 10A Problems/Problem 20 →Video Solution
• 23:1823:18, 1 February 2020 diff hist +19 2020 AMC 10A Problems/Problem 20 →Video Solution
• 23:1723:17, 1 February 2020 diff hist +63 2020 AMC 12A Problems/Problem 24 →Solution

26 September 2019

• 10:0510:05, 26 September 2019 diff hist +108 2017 AMC 10A Problems/Problem 15 →Solution 3

10 August 2019

• 01:4501:45, 10 August 2019 diff hist +149 2010 AIME I Problems/Problem 15 →Solution

2 August 2019

• 15:3215:32, 2 August 2019 diff hist +49 2019 AIME II Problems/Problem 13 →Solution

1 August 2019

• 01:5001:50, 1 August 2019 diff hist +49 2019 AMC 10B Problems/Problem 22 →Solution

25 July 2019

• 16:0616:06, 25 July 2019 diff hist +64 2019 AMC 10B Problems/Problem 21 →Solution 2 (Easier)

8 July 2019

• 20:4620:46, 8 July 2019 diff hist −6 2018 AIME II Problems/Problem 8 →Video Solution
• 20:4520:45, 8 July 2019 diff hist −95 2018 AIME II Problems/Problem 8 →Video Solution
• 20:4520:45, 8 July 2019 diff hist +91 2018 AIME II Problems/Problem 8 →Solution 3 (General Case)
• 20:4520:45, 8 July 2019 diff hist +95 2018 AIME II Problems/Problem 8 →Solution 3 (General Case)

1 July 2019

• 00:3700:37, 1 July 2019 diff hist +77 2016 AIME II Problems/Problem 12 →Solution 8

25 June 2019

• 00:0800:08, 25 June 2019 diff hist +64 2018 AIME I Problems/Problem 14 →Solution
• 00:0700:07, 25 June 2019 diff hist +116 2018 AIME I Problems/Problem 14 →One page solution

15 March 2019

• 00:4300:43, 15 March 2019 diff hist +61 2019 AIME I Problems/Problem 6 →Solution

12 February 2019

• 00:4800:48, 12 February 2019 diff hist +63 2019 AMC 12A Problems/Problem 22 No edit summary

11 February 2019

• 02:3302:33, 11 February 2019 diff hist +63 2017 AMC 12A Problems/Problem 22 No edit summary
• 02:3202:32, 11 February 2019 diff hist +62 2014 AMC 10B Problems/Problem 25 No edit summary
• 02:3102:31, 11 February 2019 diff hist +63 2018 AMC 10B Problems/Problem 25 No edit summary
• 02:3002:30, 11 February 2019 diff hist +64 2018 AMC 10B Problems/Problem 24 No edit summary
• 02:2902:29, 11 February 2019 diff hist +63 2018 AMC 10B Problems/Problem 23 No edit summary
• 02:2702:27, 11 February 2019 diff hist +71 2018 AMC 10B Problems/Problem 22 No edit summary
• 02:2502:25, 11 February 2019 diff hist +55 2018 AMC 10B Problems/Problem 21 No edit summary
• 02:2402:24, 11 February 2019 diff hist +140 2016 AIME I Problems/Problem 13 No edit summary

2 January 2019

• 01:1901:19, 2 January 2019 diff hist +1 2008 AIME II Problems/Problem 15 →Solution 3 (Big Bash)

18 October 2018

• 23:0523:05, 18 October 2018 diff hist −3 1985 AIME Problems/Problem 14 →Solution 2
• 23:0423:04, 18 October 2018 diff hist +1,147 1985 AIME Problems/Problem 14 →Solution

12 March 2018

• 23:2323:23, 12 March 2018 diff hist +126 1995 IMO Problems/Problem 2 →Solution

18 February 2018

• 15:4315:43, 18 February 2018 diff hist +18 AMC historical results →AMC 12A
• 15:4215:42, 18 February 2018 diff hist +18 AMC historical results →AMC 10A

12 February 2018

• 18:1518:15, 12 February 2018 diff hist +15 AMC historical results →AMC 12A
• 18:1518:15, 12 February 2018 diff hist +34 AMC historical results →AMC 10A

11 February 2018

• 17:4817:48, 11 February 2018 diff hist +13 AMC historical results →AMC 10A

15 January 2018

• 15:2615:26, 15 January 2018 diff hist −8 2012 AMC 10A Problems/Problem 20 →Solution

12 January 2018

• 23:4723:47, 12 January 2018 diff hist +1,413 2006 AIME II Problems/Problem 8 →Solution

10 January 2018

• 20:0520:05, 10 January 2018 diff hist +2,494 2012 AMC 10A Problems/Problem 20 →Solution

8 January 2018

• 12:4112:41, 8 January 2018 diff hist +123 2010 AMC 10A Problems/Problem 22 →Solution 2

30 November 2017

• 13:5713:57, 30 November 2017 diff hist +127 1993 AIME Problems/Problem 15 →Solution
• 13:5313:53, 30 November 2017 diff hist +312 1993 AIME Problems/Problem 15 →Solution

19 July 2017

• 02:4902:49, 19 July 2017 diff hist +101 2012 AMC 10A Problems/Problem 23 →Solution

9 May 2017

• 09:4609:46, 9 May 2017 diff hist +302 2016 AMC 10A Problems No edit summary