Hidden within a grid of coloured dots is a similarly-coloured letter of the alphabet.
It sounds simple enough, but the letters are harder to spot than you may expect.
Can you spot the letter hidden within this grid of colored dots? The choice is offered below to help decide.
Created by Playbuzz, the puzzle has nine stages, each stage a different colour theme, including pink, yellow, green and purple.
Quizzers are given a choice of four letters and they have to spot the letter contained within the dots.
However, some colours are easier to distinguish than others.
As the challenge goes on it becomes increasingly difficult to spot the letters that blend almost seamlessly with their backgrounds.