3 August 2015

• 19:1719:17, 3 August 2015 diff hist +1,003 2004 AIME II Problems/Problem 7 Added 4th solution

20 March 2015

• 15:3915:39, 20 March 2015 diff hist +507 2007 AMC 10B Problems/Problem 21 Added solution using ratios
• 15:0515:05, 20 March 2015 diff hist +656 2005 AMC 12A Problems/Problem 15 Solution 3 (using power of a point) added

14 January 2015

• 00:4500:45, 14 January 2015 diff hist −47 2002 USAMO Problems/Problem 4 No edit summary
• 00:4400:44, 14 January 2015 diff hist +706 2002 USAMO Problems/Problem 4 No edit summary