Spot the Difference
About Spot the Difference
Spot the Difference challenges you to compare two grids that look almost identical and find exactly what has changed. The differences can be subtle — a shifted symbol, a swapped colour, a missing element — so it rewards careful, methodical looking. It is a quick, absorbing test of visual attention that plays in your browser with no account or download.
How to play
- Study the two grids shown side by side.
- Compare them section by section to find what is different.
- Click the spot where you have found a change.
- Find every difference to complete the round.
What it trains
Spot the Difference builds visual attention, concentration and processing speed — how quickly and accurately you take in visual detail. Systematically comparing two images is the same skill used in proofreading, checking data and any task where small errors matter. It is a gentle, focused way to keep your eye for detail sharp.
Tips to find differences faster
- Scan in a fixed order — top to bottom, left to right — rather than jumping about.
- Compare one small region of each grid at a time.
- Look for changes in colour, position, count and orientation.
- Take a brief pause and re-scan; a fresh look often reveals the last difference.
Frequently asked questions
What skills does this build?
Mainly visual attention and processing speed — spotting fine detail quickly and accurately.
Is it suitable for all ages?
Yes. It is a friendly, low-pressure puzzle that works well for children and adults.
Is it free?
Yes, it is free to play in your browser with no sign-up or download.