
Puzzles · illusions · memory
Look
again.
Visual puzzles, hidden object puzzles, optical illusions, and memory challenges for curious readers who like to test their eyes and their brain.
- Hidden objects
- Optical illusions
- Memory challenges
- Pattern puzzles
- Spot the difference
Play
Puzzles for your eyes
Visual puzzles, hidden-object scenes, illusions and memory grids. Free to play, right in your browser.
Visual puzzles
Odd one out · What comes next · Mirror match
Memory
Memory grid
Warm-up
One tile is lying to you.
Every round, one square is a shade lighter than the rest, and the gap shrinks each time. It is a quick test of colour sensitivity, the same skill that finds a hidden key on a patterned rug.
- Rounds one to three: a 4 × 4 grid, easy shades
- Rounds four to seven: 5 × 5, the gap narrows
- Round eight on: 6 × 6, trust your eyes
Round
1
Best
0
Looks left
One tile is a lighter shade. Tap it. Three wrong taps and the round ends.
What we make
Five ways to test your eyes

01
Hidden objects
A crowded room, a short list, and things that blend into the wallpaper until they suddenly do not.

02
Optical illusions
Lines that bend, shapes that cannot exist, and the reasons your brain fills in what is not there.

03
Memory challenges
Look, look away, recall. Pairs, sequences and grids that stretch your short-term memory.

04
Pattern puzzles
Tessellations, sequences and the one piece that breaks the rule. Find it, then explain it.

05
Spot the difference
Two scenes, a handful of changes. The last one is always the one hiding in plain sight.
- Or read the FAQ
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