AbraCalc

Odd One Out — Spot the Different Tile

One tile is a slightly different shade. Tap it before time runs out. Each round the grid grows and the difference shrinks.

Find the tile that's a different shade!
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How to play

  1. Click Start — a grid of same-colored tiles appears with one slightly different.
  2. Tap the tile whose shade is different from the rest.
  3. Each correct tap advances a round; the grid grows and the difference shrinks.
  4. Wrong taps flash a red outline but don't end the game.
  5. Score as many rounds as you can before the 45-second timer runs out.

A grid of identical colored tiles hides one impostor that's a slightly different shade. Tap it to advance. With every round the grid gets bigger and the color difference gets smaller, testing your color discrimination and visual search speed against a 45-second clock.

Frequently asked questions

How does the difficulty increase?
Each correct tap grows the grid by one row and column and reduces the shade difference, so later rounds are much harder to spot.
Is this a color blindness test?
No — it's a visual search game, not a clinical test. People with color vision deficiencies may find later rounds tougher, but it isn't a diagnostic tool.