Main content

Puzzle for Today

Puzzle No. 519– Tuesday 9 July

GCHQ is celebrating its centenary. The letters G C H and Q are in positions 7, 3, 8 and 17 in the alphabet. Using standard Countdown rules, can you use those numbers to reach the target of 100?

Today’s #PuzzleForToday has been set by GCHQ

(7-3)*(8+17) = 100

More fiendish brain-teasers and quizzes on BBC Radio...