1 January 2015

• 15:0015:00, 1 January 2015 diff hist −81 1992 AHSME Problems/Problem 30 →Solution current
• 14:3314:33, 1 January 2015 diff hist +12 m 1992 AHSME Problems/Problem 30 →Solution
• 14:3314:33, 1 January 2015 diff hist +723 1992 AHSME Problems/Problem 30 →Solution

10 April 2012

• 09:5709:57, 10 April 2012 diff hist +30 2003 USAMO Problems/Problem 5 →Solution

1 April 2012

• 11:2511:25, 1 April 2012 diff hist −1 m 2009 USAMO Problems grammar
• 11:2511:25, 1 April 2012 diff hist +9 2009 USAMO Problems →Problem 4: placed max inside latex

6 February 2012

• 22:4922:49, 6 February 2012 diff hist +167 2010 AMC 12B Problems/Problem 24 →Solution

11 March 2011

• 22:2022:20, 11 March 2011 diff hist +44 2007 AIME I Problems/Problem 9 →Solution 7

26 April 2010

• 20:3820:38, 26 April 2010 diff hist −155 2002 USAMO Problems/Problem 1 Correcting a mistake

24 April 2010

• 15:4415:44, 24 April 2010 diff hist 0 2002 USAMO Problems/Problem 4 →Solution 3
• 13:1413:14, 24 April 2010 diff hist +749 2002 USAMO Problems/Problem 4 No edit summary

18 April 2010

• 15:5415:54, 18 April 2010 diff hist +3,230 2005 USAMO Problems/Problem 4 No edit summary

15 February 2010

• 18:5618:56, 15 February 2010 diff hist −11 2006 AMC 12B Problems/Problem 23 No edit summary

27 November 2009

• 14:0414:04, 27 November 2009 diff hist +179 2002 AIME I Problems/Problem 9 No edit summary

13 March 2009

• 21:0021:00, 13 March 2009 diff hist −1 m 1992 AIME Problems →Problem 8

12 March 2009

• 17:2817:28, 12 March 2009 diff hist +2 1996 AIME Problems/Problem 2 →Solution

1 September 2008

• 13:4013:40, 1 September 2008 diff hist 0 2003 AIME II Problems/Problem 5 →Solution
• 13:3913:39, 1 September 2008 diff hist 0 2003 AIME II Problems/Problem 5 →Solution
• 13:3913:39, 1 September 2008 diff hist −6 2003 AIME II Problems/Problem 5 →Solution