Wim Hulpia (@hulpia_wim) / Twitter
GCHQ release puzzle book filled with 'world's hardest brain teasers' for Christmas | The Independent | The Independent
Here's who came closest to solving GCHQ's 'fiendishly difficult' Christmas puzzle | The Independent | The Independent
Waw! Belg lost moeilijkste puzzel ter wereld op | De Morgen
Los jij de puzzel van de beste puzzelaar ter wereld op? | Bizar | AD.nl
Enigma Replica
No One Cracked GCHQ's Christmas Quiz but 3 People Are Getting a Paperweight Anyway
Beste puzzelaar ter wereld maakt onze maandagpuzzel, en dit is de oplossing! | Het leukste van het web | hln.be
Trio prove themselves GCHQ Christmas crackers
GCHQ Christmas card answers revealed as director reveals no one cracked it, despite three people getting close - Mirror Online
Answers To GCHQ Christmas Puzzle Revealed | UK News | Sky News
Altijd een logica achter puzzels" | Lovendegem | hln.be
Wim Hulpia (@hulpia_wim) / Twitter
Wim Hulpia (@hulpia_wim) / Twitter
Waw! Belg lost moeilijkste puzzel ter wereld bijna op | Wetenschap & Planeet | hln.be
No One Cracked GCHQ's Christmas Quiz but 3 People Are Getting a Paperweight Anyway
bart (@bartvdhurk) / Twitter
Waw! Belg lost moeilijkste puzzel ter wereld op | De Morgen
Here's who came closest to solving GCHQ's 'fiendishly difficult' Christmas puzzle | The Independent | The Independent
