Are you ready to put your observation skills to the test? This optical illusion puzzle IQ test challenges you to spot the number 6738 hidden among a grid full of 6733s and you only have 8 seconds to do it! At first glance, the numbers look almost identical, but the subtle difference between 3 and 8 makes this puzzle both tricky and fun.
Such puzzles are more than just entertainment they also help sharpen your focus, improve pattern recognition, and boost your mental agility.
The challenge lies in resisting your brain’s natural tendency to “auto-read” similar shapes, especially under time pressure.
Optical Illusion Puzzle IQ Test: Within 8 Seconds Spot The Number 6738 among 6733s
In this optical illusion IQ test, your goal is to spot 6738 hidden within a grid of 6733s in under 8 seconds. The trickiness comes from the near-identical shapes of the final digits: 8 and 3 share similar curves, so your brain quickly “autocompletes” 6738 as 6733, especially under time pressure and visual crowding.
To beat the illusion, focus on the last digit of each group and look for the telltale closed upper and lower loops of the 8 (where 3 has open arcs).
Scanning column by column and soft-focusing on circular shapes helps you isolate the odd number faster.
Optical Illusion Puzzle IQ Test: Within 8 Seconds Spot The Number 6738 among 6733s - Solution
To solve this optical-illusion grid quickly, first split the image mentally into four quadrants and scan the lower-right section, where irregularities tend to pop; then read each number block left-to-right, top-to-bottom, watching the last digit.
The odd one out, 6738, appears where the red ring sits: it’s in the 10th row from the top and the 8th column from the left (i.e., the third number from the right on that row).
If you count the small white connector dots as guides, you’ll find it just below the midline and slightly right of center, confirming the exact position: row 8, column 9.
