Re: the dates for the Cipher Challenge competition:

It appears that some time in the last few weeks (perhaps when we moved servers) we inadvertently published an out of date version of the Teachers' Pack. This contained the wrong dates for this year's challenges, and I am grateful to the eagle eyed JT at Alderbrook Leading Edge School and Arts College for pointing this out. We have now replaced the Teachers' Pack with the up to date version showing the correct dates, and these may also be found on the Rules page of the website which has not changed. To confirm, the first challenge will be published at 3.30pm on Thursday September 27th. Please accept my apologies for the confusion.