http://www.3quarksdaily.com/3quarksdaily...at-95.html

Three puzzles from Martin Gardner (1914-2010)

"News of Martin Gardner's death began circulating on Saturday night. For those of you who are unfamiliar with his work, here's a taste of the kinds of puzzles he was famous for bringing to the world... "

loved The Annotated Alice and his column in SA (wrote a bunch of fun code from that -- Mandelbrot, DLA fractals, life, hypercubes... -- 懐かしい)