![Cambridge code-breaker played by Keira Knightley in The Imitation Game gets blue plaque](https://cdn.newsserve.net/ONPglobe256.png)
Cambridge code-breaker played by Keira Knightley in The Imitation Game gets blue plaque
Joan Clarke, who studied at the University of Cambridge, was a talented mathematician who worked with Alan Turing at Bletchley Park during the Second World War.
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