11 June 2019

• 14:3914:39, 11 June 2019 diff hist +22 m 1975 USAMO Problems/Problem 3 →Solution 2

13 March 2018

• 14:5714:57, 13 March 2018 diff hist 0 m 2011 AIME II Problems/Problem 14 →Solution 3 (2-sec solve)

8 March 2018

• 00:4800:48, 8 March 2018 diff hist +9 m 2018 AIME I Problems →Problem 15

9 May 2017

• 11:3011:30, 9 May 2017 diff hist +56 N 2017 USAMO Problems/Problem 3 Created page with "Contact v_Enhance at https://www.facebook.com/v.Enhance."
• 11:2911:29, 9 May 2017 diff hist −16 m 2016 USAMO Problems/Problem 2 →Solution 2 (Controversial)
• 11:2811:28, 9 May 2017 diff hist +16 m 2016 USAMO Problems/Problem 2 →Solution 1

6 May 2017

• 18:1818:18, 6 May 2017 diff hist −17 2008 IMO Problems/Problem 4 →Solution

19 March 2017

• 00:5300:53, 19 March 2017 diff hist 0 2006 USAMO Problems →Day 2
• 00:5200:52, 19 March 2017 diff hist +82 2006 USAMO Problems →Day 2
• 00:5000:50, 19 March 2017 diff hist −422 2006 USAMO Problems →See Also

16 March 2013

• 21:4921:49, 16 March 2013 diff hist +78 m 2013 AIME I Problems/Problem 14 →Problem 14
• 21:4521:45, 16 March 2013 diff hist +695 m 2013 AIME I Problems/Problem 14 →Problem 14