Lower 6th @PockSchool student, Louisa Cullen, breaks GCHQ numerical puzzle @BBCr4today . See the answer here bit.ly/2siMx9t #genius https://t.co/PBAv9yg6gY
Lower 6th @PockSchool student, Louisa Cullen, breaks GCHQ numerical puzzle @BBCr4today . See the answer here bit.ly/2siMx9t #genius https://t.co/PBAv9yg6gY