Free

Brain games

Eleven short games for memory, speed, and attention. Free for every visitor. No account and no payment. A result here is practice, not an IQ score.

Number Memory

Memory

A number flashes. Type it back. Each round adds a digit. Three lives.

Play

Reaction Time

Speed

Wait for green, then tap. Five rounds. Your average is the score.

Play

Visual Memory

Memory

Squares light up for a moment. Tap every square that lit. Three lives.

Play

Chimp Test

Memory

Numbers sit on a grid. Tap 1 and the rest vanish. Then tap them in order. Three lives.

Play

Stroop Test

Attention

Tap the ink color, not the word you are reading. It gets faster. Three lives.

Play

Sequence Memory

Memory

Squares flash in order. Repeat that order. Each round adds a square. Three lives.

Play

Verbal Memory

Memory

Have you seen this word already in this game, or is it new? Three lives.

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N-Back

Memory

Tap Same when the lit square matches the one from N steps ago. N starts at 1 and rises. Three lives.

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Middle Arrow

Attention

Tap the direction of the middle arrow. Ignore the arrows beside it. It gets faster. Three lives.

Play

Pairs

Memory

Flip two cards. Find all eight pairs in as few moves as you can.

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Quick Sums

Numbers

Solve as many sums as you can in 60 seconds. A wrong answer just moves on.

Play

Classic tasks, written for this site: digit span, simple reaction time, pattern recall, a numeral grid (Inoue and Matsuzawa, 2007), Stroop (1935), sequence span, word recognition, n-back (Kirchner, 1958), the flanker task (Eriksen and Eriksen, 1974), concentration, and mental arithmetic. Not WAIS, and not an IQ score.

Scored IQ tests are separate