25 June 2021

• curprev 17:3717:37, 25 June 2021 Cellsecret talk contribs 4,651 bytes +26 →Solution 2

19 July 2016

• curprev 06:5306:53, 19 July 2016 1=2 talk contribs m 4,625 bytes +2 →Solution 2
• curprev 06:5306:53, 19 July 2016 1=2 talk contribs m 4,623 bytes +19 →Solution

18 July 2016

• curprev 22:2022:20, 18 July 2016 1=2 talk contribs m 4,604 bytes +73 →Resources

13 March 2015

• curprev 19:4319:43, 13 March 2015 Mathgeek2006 talk contribs m 4,531 bytes +17 →Add-on

3 July 2013

• curprev 19:5719:57, 3 July 2013 Etude talk contribs 4,514 bytes +15 No edit summary

25 April 2013

• curprev 21:0721:07, 25 April 2013 Bob808 talk contribs 4,499 bytes 0 No edit summary
• curprev 21:0521:05, 25 April 2013 Bob808 talk contribs 4,499 bytes 0 No edit summary

25 April 2010

• curprev 17:1917:19, 25 April 2010 Goldey talk contribs 4,499 bytes +1,262 →Add-on

22 April 2010

• curprev 22:3722:37, 22 April 2010 Moplam talk contribs m 3,237 bytes −146 →Resources
• curprev 17:2117:21, 22 April 2010 Moplam talk contribs m 3,383 bytes +3 →Add-on
• curprev 17:1917:19, 22 April 2010 Moplam talk contribs 3,380 bytes +2,338 →Solution
• curprev 09:5209:52, 22 April 2010 Moplam talk contribs m 1,042 bytes +204 No edit summary

5 April 2009

• curprev 17:3517:35, 5 April 2009 Leoxnlin talk contribs 838 bytes +838 moved from problem 3 to 4