Roger Penrose

Roger Penrose

male, 78 years old
scientist, cosmology, University of Oxford, Erdős number 3, recreational mathematics, general relativity…mathematician, recreationalmathematician
Sir Roger Penrose, OM, FRS (born 8 August 1931) is an English mathematical physicist and Emeritus Rouse Ball Professor of Mathematics at the...
Sam Loyd

Sam Loyd

male, deceased (1911)
Cyclopedia of 5000 Puzzles, recreationalmathematician, American, Tangram, Chess problemist, recreational mathematics
Samuel Loyd (January 31, 1841-April 10, 1911), born in Philadelphia and raised in New York, was an American puzzle author and recreational...

Uriah Fuller

male
magician, skeptic, American, author, psychic, recreational mathematics…recreationalmathematician
Uriah Fuller is a pen name that Martin Gardner, a notable American skeptic, recreational mathematician, author, and amateur magician, used to write...