### Gardner and Math circle

I was looking online and was shocked that Martin Gardner died on May 20th. Going over the information posted on wikipedia it was a surprise that Martin never learned Calculus. Martin has affected the life of so many people with his columns.

While spending some time at cut-th-knot website I came across the puzzle of Frogs and Toads and after a while I discovered how to exchange their relative positions. I think I need to get the book "Winning ways for your Mathematical Plays". It now comes in 4 volumes and Gardner's annotated "Alice in wonderland". Other in my wish list is " A decade of Berkley Math Circles"