William Thomas Tutte (May 14 1917 - May 2 2002), British codebreaker and mathematician. His work at Bletchley Park on the German FISH cipher arguably changed the course of World War II, and led to the development of Colossus, one of the earliest electronic digital computers.
As a student he worked on the problem of squaring the square.
His later career concentrated on graph theory. Among other achievements, he disproved Tait's conjecture using the construction known as Tutte's fragment.
- more, please, on W. T. Tutte's glorious career, but I've got to go to work
- Brooks, R. L.; Smith, C. A. B.; Stone, A. H.; and Tutte, W. T. "The Dissection of Rectangles into Squares." Duke Math. J. 7, 312-340, 1940
