[plorntus]

Problem with the latter example is those that are colour blind although I guess it's not much worse than asking people to sum up dice.

I'm guessing though they are more so looking at % correct and the actual behaviour of making a selection rather than just whether you are capable of adding up numbers.

[JeanMarcS]

Well that's not the case. I made a mistake on the fifth one and had to start all again from the start.

So it's 100% correct or redo. Infuriating