[ Rule ]
1 : you can see 3x3 cat panels for 1 second only
2 : you need to answer the same panel layout
3 : press "Go!" button to check the answer
+ the cat panels have 4 patterns
[ About Short-Term Memory (STM) ]
+ it is said STM can handle 5 to 9 items
+ it is said STM can remember for 18 seconds
[ Concept ]
based on KISS principle
for the niche market
schizo-friendly
one-and-only
like a one-dollar shop
cheap but its not free
no ads or in-app purchase
buy me a coffee, plz!
