X, y & z : the real story of how enigma was broken - Dermot Turing

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   X, y & z : the real story of how enigma was broken - Dermot Turing

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December, 1932In the bathroom of a Belgian hotel, a French spymaster photographs top-secret documents - the operating instructions of the cipher machine, Enigma. A few weeks later a mathematician in Warsaw begins to decipher the coded communications