Who discovered the patterns in Tunny messages that helped make Colossus possible?
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Colossus
Funding for this code-breaking machine came from the Ultra project.
The British mathematician William Tutte is credited with discovering the systematic patterns in the German Tunny messages. In January 1942, seven months after the transmissions were first intercepted, Tutte deduced that the machine used a system of 12 internal wheels to produce the "key" that masked the teleprinter-coded messages. This breakthrough was essential for the subsequent development of Colossus, the world's first large-scale programmable electronic computer, which was designed to automate the process of breaking these complex ciphers.12