Stroop TestFree, no sign-up
Name the ink color, not the word. The questions change at midnight Japan time (UTC+9) and are the same 20 for everyone on the same day.
Wrong. Name the ink color, not the word
🎉 All 20 cleared!
Random practice runs are not added to the leaderboard.
FAQ
What is the Stroop test?
It's a psychology test based on the Stroop effect: when a color word is printed in a different color, it takes longer to name the ink color. It measures how well you can ignore the word and switch your attention to the color.
How do I answer?
Pick the ink color of the word from the 4 buttons below (Red, Blue, Green, Yellow). On a keyboard, use 1 to 4. A wrong answer means trying the same question again.
Do the questions change every day?
Yes. The 20 questions change at midnight Japan time. About 70% of them show a word that doesn't match its color.
How is the leaderboard ranked?
By the time to answer all 20 questions, fastest first. You only need a nickname, and you can submit up to 30 times a day. The server checks your list of answers.