Spotto

A grid of tiles fills the screen and exactly one of them is a shade lighter than the rest. Find it and tap it. The grid then grows and the difference between the odd tile and its neighbours shrinks, so the test gets harder in two directions at once.

One wrong tap ends the run, which makes this the cabinet where nerve costs more than speed.

Spotto is a visual discrimination game, free in the browser, with no download and no account. The round is sixty seconds.

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