Guess the shape on the card.

Select answer with LEFT/RIGHT swipe.

Check answer with UP/DOWN swipe.

When you start, you'll often score well above 20% for a while. Don't be fooled into thinking you're gifted! Keep going. A good sample size is 100 answers per day for a month.

Don't reset the score, and eventually it will average around 20%. No one is psychic.

"Science will triumph." ~ Captain Kirk, in the original series Star Trek episode, Spock's Brain.