A new optical illusion challenge has caught the attention of puzzle enthusiasts and casual viewers alike, inviting people to test their visual perception by finding the number 98 cleverly hidden among a sea of 89s. This brain teaser has been gaining popularity for its simple yet tricky design that pushes the limits of observation and cognitive speed.
Understanding the Illusion

At first glance, the image appears to be filled only with the number 89 repeated in a pattern. However, a single 98 is camouflaged within the sequence, making it difficult to detect immediately. The complexity arises because the digits 8 and 9 have similar shapes, especially when the numbers are inverted or tightly packed, which confuses the brain’s pattern recognition process.
The Science Behind Visual Perception
Optical illusions like this play on how the brain processes visual information. Our brains tend to look for familiar patterns and often fill in gaps automatically, which helps in everyday perception but can be tricked by carefully arranged stimuli. The similar curves of the digits 8 and 9 create an illusion where the 98 blends seamlessly with the 89s, challenging viewers to slow down and focus sharply.
How to Take the Challenge
Participants are given only a few seconds—usually around eight—to locate the different number within the grid. Those who succeed demonstrate strong cognitive processing, attention to detail, and quick visual scanning abilities. Experts suggest scanning the image row by row or column by column and paying close attention to the shapes of each digit’s loops and tails for subtle differences.
Popular Appeal in Australia
This kind of brain teaser appeals widely across age groups and demographics in Australia, where puzzles and visual challenges are often enjoyed both in print and online formats. It provides not only an engaging pastime but also serves as a mental exercise that helps keep the brain sharp. Schools and educators sometimes use similar puzzles to develop students’ focus and observation skills.
Optical Illusion Answer

Beyond entertainment, optical illusions highlight fascinating aspects of human psychology and brain function. They remind us how subjective and flexible perception can be, influenced by both biological wiring and learned habits. In an era of constant digital distraction, exercises like these encourage mindful looking and patience.
The Hidden Number 98 Challenge continues to intrigue with its mix of simplicity and difficulty. It’s a fun way for anyone to test and train their eyes, offering a rewarding sense of achievement to those who spot the elusive figure amidst the near-identical numbers.