Test your sequence memory
Nine tiles flash in a pattern; replay it. The pattern grows one step every level.
Tools used in this guide
The job
Simon-style spatial memory: the grid flashes tiles 420 ms each and you replay the order. The only difficulty knob is length — patterns run to 60 steps if you get there.
Watch then replay
Press start, watch the flashes, then click the same tiles in order. A wrong tile ends the run; the level counter is the pattern length you reached.
Worked example
Level 8 = an 8-tile sequence. Missing the 6th tap ends at level 8 — most casual players land between 5 and 10.
Where it stops
Visual only — no tones, so it tests spatial order, not audio association. Nothing is recorded; refresh and the run is gone.