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The National Cipher Challenge

Celebrate good times, come-on!

An unbelievable response to the competition this year, with over 8500 of you signed up. It is not too late to join in the fun, with prizes and places at the Bletchley Prizegiving up for grabs. So if you or someone you know might enjoy a weekly challenge, head over to our registration page and join the fun. You will be very welcome.

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