Bletchley Park used certain methods to ease the task of finding the right combination out of 150,000,000,000,000,000 possibilities. To try and find a pattern in the German Enigma codes, Jeffrey sheets were created. Those were a number of sheets were to be perforated with holes at specified locations, and stacked. Light shining through the holes in one or more locations could indicate possible keys.
The Bombe developed from a Polish concept and then significantly enhanced by the Mathematician, Alan Turing, was invented and became the main machine used by the British to break the German Enigma codes. At least 200 of these machine were built and were produced throughout the war. In the final year of the war Tommy Flowers invented the Colossus, the first programme for computer ever invented. Colossus could break down German Enigma codes in only few hours.
Another factor that help those working at Station X were the mistakes of the German operators. It is likely that if the Germans had used the Enigma exactly as directed, it would have been a lot harder to crack. Common mistakes were made, such as not replacing or changing the order in which the cog wheels were arranged, not arranging the two plugs in the correct formation. The Germans then introduced a fourth rotar, but it was always left in neutral. Another error was used to its maximum effect was that of the double helix. In many cases, the enigma was not anywhere near as random as the Germans had first hoped, and in a few cases the British were able to see clear patterns were letters were exactly the same within the code. Whilst this was not necessarily the Germans fault, it was still as mistake that they did not know about and failed to consider. These mistakes were exploited and picked apart by the British, giving them a further chance in forming patterns out of the codes.
Germans never found out that the Enigma had been broken therefore the British could continue to break the codes and discover important information.
Due to many facts Bletchley Park was able to break down the German Enigma codes, and the people who worked there played a major role in helping win the war.
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