Are you ready to test your focus and eyesight with a mind-bending optical illusion challenge? In this intriguing test, a grid of zeros conceals a single letter ‘C’, waiting for you to spot it within 30 seconds. Discover why finding the ‘C’ proves difficult due to the similarity between the forms of 0 and C, and how strategic scanning can help you overcome the illusion. Share this exciting challenge with friends and family for some fun competition. Learn insights on how optical illusions fool the brain and strategies to improve your observation abilities. Start the timer, spot the hidden ‘C’, and enjoy the thrill of solving this visual puzzle!