Can you solve it? Are you a lion of logic?

Or a fearsome feline of football?

UPDATE: The solutions can be read here

When I'm not writing about maths and puzzles, I'm working on my children's book series, Football School, which uses the sport as a lens to the world. Researching the Football School Encyclopedia, the latest book in the series, I discovered the following geometrical curiosity. When painted pitch markings were introduced in 1891, the goal area was in the shape of a B".

Goal posts are 8 yards (7.3m) apart. In 1891, goal kicks had to be taken from within 6 yards (5.5m) of either post, so each curved part of the B" is a segment of the locus of a point 6 yards from each post.