Thankfully as it gives me something to write, I got home this evening and some family friends had come to visit and they recommended The 1% Club to people in the room, which I concurred with, and so I put it on over dinner after they’d left and fun was had by all.
But my brother (younger than me, a fair bit more creative) came up with an answer to a question and I’m trying to work out why the logic is wrong. Forgive the crap screenshot:

Now the correct answer is 4 – when watching it live on Saturday night I spotted that immediately thanks to pattern recognition – it’s the amount of times the lines cross (intersections if you like).
My brother looks at it and goes “8”. What an idiot! But his logic was quite interesting – if you take the first shape and take away the second shape that lies within it you get the third shape – 9-1=8. And I wracked my brains and couldn’t really find a fault. What’s the leap in logic I’m missing that makes it definitively incorrect?

