Pick a practice.

Find something you want to try. Set your own difficulty.

14 practices

Mental rotation

Turn a 3D shape in your mind. Is it the same, or a mirror image?

3D shapes · Adjustable difficulty

Visual memory

Study the filled squares, then find them again from memory.

5 patterns · Optional study timer

Mental math

Work through numbers at your own pace. See how each answer works.

10 questions · No time limit

Sequence memory

Watch numbered tiles light up, then tap them in the same order.

5 rounds · 3–8 steps · Adjustable difficulty

Card memory

Study a short row of cards, then rebuild it in the same order.

5 rounds · 3, 5 or 8 cards · Adjustable difficulty

Go-board memory

Remember the black and white stones, then rebuild their positions.

5 boards · 3, 5 or 8 stones · No Go knowledge needed

Word search

Find hidden words. Start with a word list, or solve their clues.

6–10 words · Word list or clues · No time limit

Missing pattern

Find the picture that completes the pattern. Look for rules across the grid.

6 questions · Explanations · Optional timer

Balance puzzles

Use the balanced equations to work out the value of each shape.

6 questions · Explanations · Optional timer

Number sequences

Discover how the numbers change, then choose what comes next.

6 questions · Explanations · Optional timer

Paper folding

Fold a sheet in your mind. Where will its holes appear when it opens?

6 questions · Explanations · Optional timer

Order logic

Use a few clues to put the objects in the right order.

6 questions · Explanations · Optional timer

Shape analogies

See how one picture changes. Apply the same change to another.

6 questions · Explanations · Optional timer

Logical deduction

Read a few statements. Choose the conclusion that must be true.

6 questions · Explanations · Optional timer