Drag to turn
Mental rotation
Tell a turned shape from its mirror image.
A mental gym
you can walk into.
Short practices for spatial reasoning, reading, memory, attention and math. Start three free rounds a day across all practices. Resets at 00:00 UTC. Seven languages, no account.
Today's set: Mirror imagesN-backExam word problems Mirror imagesHidden figuresCross sectionsShape assemblyMatch the openingRolling cubesPerspective takingGearsCube movesN-backRunning spanOperation spanSymbol codingStroopLogic gridsDigit spanPerceptual speedTask switchingData interpretationNumber propertiesCounting combinationsUnit conversionExam word problemsCompare quantitiesEstimate and compareReason with probabilityFind the missing numberReading skillsWord parts
Try a beginner practice3 questions · Untimed · No account
Try the cube: match each face to one color.
Match the colors. Swipe a face to turn; drag beside it to look around.
You can also tap a tile, then another on the same face to turn. Tap beside the cube to change the view.
Arrow keys look around. R, U, F, L, D, B turn the right, top, front, left, bottom or back face; Shift reverses. M, E, S turn the middle layers. Z undoes. Home restores the view. Escape clears a selected tile.
Explore practices Try a new, slightly harder four-turn scramble.
Practice
All practicesLibrary
All lessonsTurn a shape, don’t flip it
Follow an uneven shape through a turn and a reflection.
Compare exactly N steps back
Check the required earlier position, not just whether a square looks familiar.
Find the only place
Learn the two steps that start most sudoku puzzles. Scanning by symbol beats scanning by square.