GCHQ has released its annual effort to separate potential James Bonds from Bart Simpsons with a fiendish brain teaser.
The #GCHQChristmasChallenge is aimed at 11-18-year-olds and more than 1,000 secondary schools are set to participate on Thursday.
GCHQ has released its annual effort to separate potential James Bonds from Bart Simpsons with a fiendish brain teaser.
The #GCHQChristmasChallenge is aimed at 11-18-year-olds and more than 1,000 secondary schools are set to participate on Thursday.