Gardner, Gardner, Gardner

But first, here's a nicely-done version of an old puzzle:



'Futility Closet' recently noted that Martin Gardner once did his own variation on this classic puzzle:

http://www.futilitycloset.com/2012/11/19/hole-hearted/

And a couple more Gardner pieces recently linked to by Twitterer Colm Mulcahy:

One is the story of Martin's humble work desk:

http://twodifferentgirls.com/2012/04/10/martin-gardners-desk-a-humble-desk-generations-of-genius/

And a very good, older interview with Martin, by Colm here:

http://www.maa.org/columns/colm/cardcolm200610.html