English mathematician, logician and philosopher known for his contributions to differential equations and algebraic logic. His book on algebraic logic, The Laws of Thought, introduced Boolean logic which laid the foundations for the information age.
In it's modern form, Sukodu was first published on November 12, 2004, in The Times, UK. The newspaper received a "complaint" the very next day from one Ian Payn. He had got so engrossed in the puzzle that he missed his bus. [more...]