6 April 2019

• 20:5620:56, 6 April 2019 diff hist −1 2017 USAJMO Problems/Problem 2 →Solution 1
• 20:5620:56, 6 April 2019 diff hist −2 2017 USAJMO Problems/Problem 2 →Solution 1
• 20:5520:55, 6 April 2019 diff hist +26 2017 USAJMO Problems/Problem 2 →Solution 1

3 September 2018

• 10:0210:02, 3 September 2018 diff hist +11 m 2015 AIME I Problems/Problem 11 →Solution 3

26 February 2018

• 22:3922:39, 26 February 2018 diff hist +1,137 2015 AIME I Problems/Problem 11 No edit summary

17 June 2017

• 16:2816:28, 17 June 2017 diff hist +17 2017 USAJMO Problems/Problem 2 →Solution 1
• 08:2908:29, 17 June 2017 diff hist +1,849 2017 USAJMO Problems/Problem 2 →Solution