This is recreation and general visual-search practice. Scores do not measure visual acuity, attention or cognitive ability and are not clinical results.
How to play
Compare Picture A and Picture B, then tap or click either picture where something changed. On a keyboard, focus a picture, move the visible cursor with the arrow keys and press Enter or Space. Hint moves the cursor near an unfound change.
Easy has three differences per scene with no timer. Medium has four differences and relaxed timing. Hard has five differences, fewer hints and less time. Each session rotates through the park, bedroom, kitchen and street.
Important boundary
The scenes are original procedural illustrations for recreation and general visual-search practice. Scores do not measure visual acuity, attention or cognitive ability and are not screening or clinical results. Pause and rest your eyes whenever needed.