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Cognitive training club

The mental gym
for your brain

Short exercises for memory, attention and logic, plus strategy games. Choose a game and start without signing up.

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Play for free. Premium adds statistics.

Premium disables advertising and unlocks statistics. It does not unlock a separate set of games.

Results describe performance in BB Gym exercises; they are not an IQ score or a medical assessment.

Brain trainers

Pick a trainer and start a workout — free, no sign-up. Logic, memory, focus and speed.

Missing NumbersPut the plaques back in place Basic Test30 standard tasks from five trainers — a complete cognitive check-up. MentalistA nine-stage visual perception and intuition test. Memory GridMemorize the positions of the shapes on the grid. Once they disappear, drag and drop them back to their correct places using your finger or mouse. Trains spatial memory. FogMemorize the board, then clear the fog over the target number with gusts of wind. Trains memory and reaction. ChefCatch the flying ingredients and cook the Perfect Soup. Trains attention, reaction and planning. ClockAssemble a number from sliced halves: pick the paper that folds into the right digits. Trains spatial reasoning. Who's the Killer?One suspect is the killer — and the killer always lies. Ask questions, cross-check the answers and deduce who it is. Trains logic and deduction. DetectorColoured shapes grow on the board, each labelled with a colour + shape. Tap only when the label truly matches the shape; ignore the liars. Trains attention, inhibition and reaction speed. Rotate CubeA cube is shown from one angle. Pick the option that is the same cube, just rotated. Trains spatial reasoning and mental rotation. Fluid FiguresFind the right option to complete the matrix. Trains logic and thinking speed. Raven's MatricesFind the figure that completes the matrix by its hidden rule. Trains logic and thinking speed. Dot CrossRead the rules and pick the one figure where the dot and the cross obey every condition. Trains speed, spatial reasoning and attention. TeleportA square piece has been cut out of a busy canvas. Pick the one fragment that fits the hole. Trains attention, speed and spatial reasoning. SchulteFind the numbers in order as fast as you can. A classic trainer for attention and visual search speed. TMTTrail Making Test: join the circles in order with one line — first numbers, then numbers and letters in turn. Trains speed, attention and mental flexibility. StroopThe Stroop test: tap the colour the word is printed in, not the colour it names. Trains attention, speed and the ability to hold back a habitual response. Go/No-GoPress as fast as you can on the “go” signal and hold back on the “no-go” one. Trains attention, reaction speed and the ability to stop a habitual action in time. CorsiCorsi blocks: lamps light up one by one — tap them in the same order, then in reverse. Trains visuospatial memory and attention. Digit SpanDigit Span: digits appear one at a time — type them in the same order, then in reverse. Trains working memory and attention. TerniaA 3×3 strategy game: be first to line up three identical tokens of your colour. Play the computer or a friend. LIMOA duel of two-sided tiles on a 7×7 board: force your opponent's color into lines and squares. Play vs computer or with a friend. EncoderDecode a phrase with a Cardano grille: find every window by turning the grille through four angles. MidnightMidnight strikes at exactly twelve. Build rows that add up to exactly 12 while the computer builds columns. The diagonals belong to no one: whoever completes one takes it. NAONAOFinish with more points: build triples in your colour and break your opponent’s groups. SIXTRIA strategy game on a 37-cell hexagonal board: manoeuvre your pieces, earn the right to move the gold ones and line up three gold pieces before your opponent. Play against the computer or two players. DROWAA tactical game about building nests from squares. Stress BunkerIt only looks like entertainment: challenge your composure under stress and your ability to juggle many tasks.

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Choose your first exercise

Read the rules, try a round and explore the other games at your own pace.

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