A fictional instrument screen flickers between version A and version B. Exactly one element changes. Tap it.
1Watch the flicker. The blank gap between frames is what makes this hard.
2Tap the thing that changes. Three tries per round; a wrong tap costs 2 seconds.
312 rounds, each subtler than the last. Beat the clock, build a streak.
A toy, not a test. Flickercheck measures nothing about your eyes, brain, or attention — it just hides one change in a picture and dares you to find it. Every panel here is invented.
Bench halted
Paused
The clock and the flicker are both stopped. Nothing is watching.
Keys: arrows move the crosshair · enter commits a tap · F flips A/B · R reveals · P pauses.
Bench complete
Bench 1 logged
Score
0
Found
0
Best run
0
—
Benches are deterministic: bench 3 always deals the same twelve panels, in the same order, with the same changes.