Last seen in:
- New York Times - Nov 17 2013
- USA Today - Oct 19 2013
- L.A. Times Daily - Aug 29 2013
- L.A. Times Daily - Jul 5 2011
- New York Times - Nov 4 2010
- Wall Street Journal - Aug 6 2010 - August 6, 2010 - Pin Numbers
- Thinks.com - Jul 12 2010
- Thinks.com - Mar 29 2010
- Wall Street Journal - Oct 2 2009 - October 2, 2009 - Puzzle 5.0
- New York Times - Jul 21 2009