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One Quick Try

All challenges

47 challenges, grouped by what they test. Each takes a minute or a few, needs no account, and gives you a plain result: a time, a score, a level or a number of moves.

Speed

How quickly you respond.

Memory

How much you can hold in mind.

  • Visual Memory

    Remember which tiles lit up.~2 min

  • Digit Span

    Repeat the digits, forward or backward.~2-4 min

  • Sequence Memory

    Repeat the order the tiles light up.~1-3 min

  • Verbal Memory

    Seen this word before, or new?~1-3 min

  • Face Memory

    Remember faces, then spot them again.~1-2 min

  • Object Location

    Put each object back where it was.~2-4 min

Perception

How you see, track and judge time.

Logic

Puzzles with a right answer and a best answer.

  • River Crossing

    Get everyone across the river safely.~2-5 min

  • Tower of Hanoi

    Move every disk in the fewest moves.~1-5 min

  • Make 24

    Use all four numbers to make 24.~2-4 min

  • Water Jug

    Measure an exact amount with unmarked jugs.~1-4 min

  • Lights Out

    Turn off every light. Each press flips its neighbors.~1-3 min

  • Matrix Reasoning

    Find the picture that completes the grid.~3-5 min

  • Shape Equations

    Each shape is a number. Work them out.~2-4 min

  • One Line

    Draw every line once, without lifting.~2-4 min

  • Peg Solitaire

    Jump pegs until only one is left.~3-6 min

  • Sliding Puzzle

    Slide the tiles back into order.~2-5 min

  • Traffic Jam

    Slide the cars to free the red one.~2-6 min

  • Chinese Rings

    Take every ring off the bar.~2-5 min

  • Code Breaker

    Crack the hidden four-colour code.~2-5 min

  • Pattern Trio

    Find three cards that match or all differ.~2 min

Attention

Finding what matters and ignoring what doesn't.

  • Stroop Test

    Name the ink color, not the word.~1 min

  • Flanker Test

    Which way does the middle arrow point?~1 min

  • Go/No-Go

    React to the circle. Hold back on the square.~1 min

  • Visual Search

    Find the one T hidden among the Ls.~1 min

  • Schulte Table

    Find the numbers in order, as fast as you can.~30-60 sec

  • Trail Making

    Connect the circles in order: 1-2-3, or 1-A-2-B.~1-2 min

  • Digit Symbol

    Match each symbol to its digit, fast.~1 min

  • Letter Cancellation

    Mark every copy of one letter, fast.~1 min

Precision

How steady and exact your hand is.

  • Perfect Circle

    Draw a circle freehand. How round is it?~10 sec

  • Mouse Accuracy

    Hit the targets quickly and dead center.~30 sec

  • 1 Second

    Start the stopwatch. Stop it at exactly 1.000.~30 sec

  • Straight Line

    Draw a line freehand. How straight is it?~30 sec

  • Shape Tracing

    Trace the outline without leaving the line.~1 min

  • Mouse Tracking

    Keep your pointer on the moving target.~30 sec