29 April 2011

• 18:2218:22, 29 April 2011 diff hist +475 2011 USAMO Problems/Problem 1 →Solution

16 July 2010

• 10:3010:30, 16 July 2010 diff hist +1,395 2010 IMO Problems/Problem 4 →Solution 2

15 July 2010

• 23:5623:56, 15 July 2010 diff hist −1,450 2010 IMO Problems/Problem 4 →Solution 2
• 23:5523:55, 15 July 2010 diff hist +1,450 2010 IMO Problems/Problem 4 →Solution 2
• 23:0823:08, 15 July 2010 diff hist +1 2010 IMO Problems/Problem 4 →Solution 2
• 23:0823:08, 15 July 2010 diff hist +874 2010 IMO Problems/Problem 4 →Solution 2
• 23:0823:08, 15 July 2010 diff hist −893 2010 IMO Problems/Problem 4 →Solution 2
• 23:0723:07, 15 July 2010 diff hist +893 2010 IMO Problems/Problem 4 →See also

2 April 2010

• 15:1315:13, 2 April 2010 diff hist +843 N 2010 AIME II Problems/Problem 14 Created page with 'Label the center of the circumcircle of <math>ABC</math> as <math>O</math> and the intersection of <math>CP</math> with the circumcircle as <math>D</math>. It now follows that <m…'