Optical Illusion: Can you spot the hidden number 9 among the sea of 6s in just 5 seconds?

Optical illusions test our perception, challenging concentration and attention to detail. This puzzle presents a grid of repeated number 6, but hidden within is a single number 9. Finding it within 5 seconds requires keen observation, as the similar shapes blend seamlessly, deceiving even the sharpest eyes. The elusive 9 is located in the seventh row and tenth column.