Spot the difference
Two grids, almost the same – find the places where they differ: another sign, a turned arrow or a gap. ← All concentration exercises
How it works
Pick a level
Easy: 4 × 4 with 3 differences · Medium: 5 × 5 with 5 · Hard: 7 × 7 with 7.
Compare
Tap the differences in the right grid. A right tap is marked, wrong taps count as errors.
Both grids side by side, the solution with the differences circled. The signs are plain and clear in black & white.
Frequently asked questions
Why symbols instead of pictures?+
The signs are put together anew for every sheet – so there are endless tasks, and they print cleanly without a colour printer.
What does the exercise train?+
Looking closely and comparing systematically: going row by row usually finds the differences faster than searching all over.
Who is it for?+
Easy suits children from kindergarten age, Hard challenges adults too. For seniors there are extra large signs when printing.
Are my results stored?+
Only in your browser. Nothing is uploaded.
The exercises are for practice and fun. They do not replace a diagnosis or therapy.