Odd One Out: spot it fast
One tile is different. Find it before the clock hits zero. Two ways to play are mixed in every game: colour shades and look-alike symbols.
🎯 Focus⏱ About 1 minute📈 Gets harder as you level up

How to play Odd One Out
- A grid of tiles appears.
- Shade rounds: one tile is a slightly different colour. Symbol rounds: one tile shows a look-alike, like a 3 among 8s.
- Tap the odd one out before the timer ends.
- Grids get bigger and differences get smaller each round.
What it trains
Odd One Out trains visual attention and focus: scanning a scene quickly and noticing small differences in colour and shape.
Tips for a higher score
- 💡 Do not stare at one tile. Let your eyes relax and scan the whole grid.
- 💡 In symbol rounds, check the curves and corners first.
- 💡 Faster taps earn more points, but a wrong tap breaks your combo.
Questions
What are the two ways to play?
Every game mixes colour-shade rounds and look-alike symbol rounds, so you train both colour and shape spotting.
How many rounds are there?
Eight rounds per game, with bigger grids as you go.
More brain games
Mix games to train every skill.