Quick brain game to test the limits of your peripheral vision

Try this quick game to test your periph­er­al vision, visu­al short-term mem­o­ry and hand-eye coordination.

Instruc­tions: When all the num­bered red squares are vis­i­ble, try to get rid of them as fast as you can, in numer­i­cal order. You don’t have to click them… just touch them with the cursor.

–> To start: Click HERE


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  1. sheri on April 7, 2007 at 5:52

    there were no 2,3,4 …that’s strange.

  2. Alvaro on April 11, 2007 at 5:53

    Hel­lo Sheri, I can see the 2,3,4…do you see them now?

  3. nancy on April 14, 2007 at 11:37

    best I could do was 33 seconds…I guess that would be 1 num­ber per second..this would be great prac­tice for hock­ey players..I was imag­in­ing they were all pucks.

  4. Alvaro on April 15, 2007 at 9:39

    that’s pret­ty good Nancy…and yes, hock­ey play­ers (or bas­ket­ball ones) need to have great periph­er­al vision and rec­tion times!

  5. Lmnop on June 18, 2008 at 5:46

    47 seconds…on a lap­top. :D

  6. Black Guy on July 9, 2008 at 11:41

    i got thir­ty sec­onds dont kno if thats good or not but i play bas­ket­ball pro­l­ly explains why im so good

  7. jairo obando on December 28, 2008 at 9:19

    I got thir­ty one after sev­er­al times.It is an inter­est­ing exercise

  8. BRyan on April 29, 2009 at 6:05

    i am 14 years old an i am in col­lege mate­r­i­al infor­ma­tion i just want­ed to say i love this game and i don’t want it to g away and if it does i am going to give all of you the swine flu

  9. Suzanne on May 13, 2009 at 12:44

    How do “old” peo­ple typ­i­cal­ly do??? I’m 60 and on the sec­ond try I did the puz­zle in 75 sec­onds. sloooow?

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SHARPBRAINS is an independent think-tank and consulting firm providing services at the frontier of applied neuroscience, health, leadership and innovation.
SHARPBRAINS es un think-tank y consultoría independiente proporcionando servicios para la neurociencia aplicada, salud, liderazgo e innovación.

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