German chess player, mathematician, & philosopher born in 1868. World Chess Champion for 27 years.
Polish & French chess player, chess journalist, & author born in 1887. First ever International Grandmaster.
American chess child prodigy, grandmaster, & 11th World Chess Champion, born in 1943.
DutchÂ World Chess Champion,Â mathematician, author, & President of the World Chess Federation, born in 1901.
Russian chess grandmaster, former World Chess Champion, writer, & political activist.