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Cipher_Challenge

Cipher_Challenge 2 days ago

PS, the puzzle which we will release at 10am this Sunday is a corker! Head over to at cipherchallenge.org/gchq-puzzle-ch… to find it.

Cipher_Challenge 2 days ago

Last week of the 2020 Special Edition of the National Cipher Challenge, & I want to thank everyone who took part and everyone who encouraged them. We hope to be back in the Autumn. In the meantime we still have a few of our fabulous @GCHQ Puzzle Challenges to come, so stay tuned.

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