Lane 6 · Relay
Sequence memory test
Watch the squares light up, then press them in the same order. Each round adds one more square to the end.
Number keys 1 to 9 press the squares in reading order. Arrow keys move between squares; Space or Enter presses one.
- This run
- –
- Step
- –
- Personal best
- –
Your score is the longest sequence you repeated without a mistake.
How to play
Press Start. The squares light up one at a time; when the board says Your turn, press them in the same order. Repeat the whole sequence and it plays again with one more square on the end. One wrong square ends the run, and the board shows the square you should have pressed. Your score is the longest sequence you repeated.
On a keyboard, number keys 1 to 9 press the squares in reading order (1 is top left, 9 bottom right), or move between squares with the arrow keys and press Space or Enter. Slow playback gives each square more time on screen.
A test of memory for places
Repeating a growing sequence of positions is close to the Corsi block-tapping test, which psychologist Philip Corsi devised in 1972 to measure memory for locations rather than words or numbers. Here every round replays the whole sequence and adds a square, so chunking helps: look for shapes, lines and returns to the same square instead of remembering single squares.
Source: Corsi PM. Human memory and the medial temporal region of the brain. PhD thesis, McGill University, 1972.
Questions
Can a square light up twice?
Yes, a square can appear more than once in a sequence, but never twice in a row, because a repeat would be invisible.
Do I have to wait for the sequence to finish?
Yes. Presses during playback are ignored; the board says Your turn when it is ready for you.
Is there a time limit?
No. Take as long as you need between presses; only the order matters.