11 February 2008
- 09:5809:58, 11 February 2008 diff hist +448 Eight queens puzzle →An animated version of the recursive solution
20 October 2007
- 09:1709:17, 20 October 2007 diff hist +2 Roofing filter No edit summary
10 October 2007
- 17:0817:08, 10 October 2007 diff hist −1 John Gardner (American writer) →Teaching and criticism: Typo?
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