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Go for launch!

We have over 1,340 teams registered for the competition already and are expecting more today. It is possible (though we hope not likely) that the web site will struggle to cope if all of you try to download the challenges at the same time this afternoon. The challenges will be published at 3pm, but THERE IS NO RUSH! You have until 11pm on Monday to get full marks for part B, and until 11pm on Wednesday to get full marks for part A. If the site is slow, try to be patient. If there is a problem, we will post updates on Twitter and if necessary we will publish he challenges there too, so please subscribe to make sure you hear the latest news: @Cipher_Master

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