Memory X

X is for eXplore.

Signal Sequence

You came back! You earned a Practice Again badge.

Length 3 - EasyYour longest pattern: 0

Press Start to play.

Tip: Try it in pairs: star-moon, star-star

Now:

You got it!

Great job! Play again?

Made by K12 Summer Workbooks. Supplemental learning aid.

Progress stays on this device.

Learn how memory works

Settings

SoundEach pad plays its own soft tone. Off to start.

Speed Normal FasterShows the pattern faster. There is still no clock.

Calm motionSteady lights, no glow. A big shape shows above the pads.

Calm motion is on because this device asks for less motion.

Play in pairsA short pause after every 2 shapes, at length 4 and up. Next pattern by itselfStarts after a short wait. Turn off to pause. It turns back on next time. Say shapesA screen reader says each shape as it lights up.

Nickname (optional)

Start over

Reset progress on this device? Your longest pattern, days played, nickname and settings will be cleared.

Progress cleared.

For grown-ups

Privacy

Memory X runs on the Grok Build platform. Like any website, its host receives your device's IP address when the page opens. The page also loads a script from grok.com, which sends your device's IP address to grok.com, and grok.com may set cookies. grok.com is a separate service, and its own privacy policy applies. The game itself saves progress only on this device.

The script is grok.com/grok-app-builder/extensions.js. In our test it let grok.com store a short Cloudflare cookie (__cf_bm, about 30 minutes). The response also tries to set a 400-day grok_device_id cookie, which Chrome blocked in our test (other browsers not tested). The script also makes a remix-eligibility request without cookies. The host (Vercel) also sets one session cookie, __vdpl. It holds the app's version number, which is the same for every visitor.

Progress

Progress stays on this device. Clearing the browser's site data, or using another device, starts over.

About this game

Supplemental learning aid, not a test of memory or attention.

Read the lesson: How Do You Remember Things?

Made by K12 Summer Workbooks.