Sequence Memory

Sequence Memory is a serial-recall test in the spirit of Simon, the 1978 electronic toy that made "watch the pattern, repeat the pattern" a household game. Tiles flash one at a time — each with its own musical note — and you tap them back in exactly the same order. Every round replays the whole sequence with one new tile added to the end, so a level-10 run means you reproduced a ten-step sequence perfectly.

Because order is everything, this measures something different from a pattern test: sequential working memory, the same faculty you use to follow directions, dial a number you just heard, or learn a piece of music. The per-tile notes are not decoration — they follow the classic Simon insight that a sequence with a melody is easier to hold than a silent one, so your ears back up your eyes.

You can tune the challenge: play on a 3×3, 4×4 or 5×5 grid, and choose one life for a pure test or three lives for practice — with three lives, a mistake costs a heart, hints the correct tile, and replays the round. Personal bests are saved per grid size in your browser, since a 5×5 sequence is a much harder beast than a 3×3 one. On the classic 3×3 the results screen also estimates your percentile; a typical run ends around eight steps.