All gamescomputermind / play
A working-memory game

N-Back.

Hold it in mind.
Then let it go.

Watch the sequence. Press when an item matches
the one from N steps back.

  1. 1
    Watch

    A letter, a square, or both, one item at a time.

  2. 2
    Look 2 back

    Press match when it equals the item 2 steps ago.

  3. 3
    Keep your lives

    Wrong presses and missed matches each cost one of three.

Personal best0
SET UP A RUN20 ITEMS
Mode
A stream of letters.
N-level2 back
Compare each item with the one 2 steps before it.

Three lives per run. Higher levels score more per match.

A small reset for your mind.Tap or click · A for letter match · L for position match
HOLD IT IN MIND. THEN LET IT GO.

Look back N steps.

Items appear one at a time. For each one, ask: is it the same as the item N steps ago? If it is, press match. If not, do nothing and wait for the next item.

Letter, Position, Dual
Letter shows a stream of letters; Position moves a square around a 3 × 3 grid. Dual shows a letter inside the square, and either can match. You get one answer per item.
Scoring
A correct match scores 10 points times the N-level, plus 10% for every match already in your streak. A wrong press or a missed match resets the streak and costs one of three lives.
Speed and demo mode
Speed sets how long each item stays on screen. Demo mode shows which item to compare with, which helps while you learn.
Play with a keyboard
Press A for a letter match and L for a position match.