Free brain training · no sign-up
Decide. Fast.
A picture, a word, and “is” or “is not”. Is the sentence true? Answer as fast as you can, without mistakes, and see where you rank against players everywhere.
- Question
- 0 / 10
- Time
- 0.00s
- Average answer
- 0.00s
- Correct
- 0
- Mistakes
- 0
Playing as not set yet · . On a computer, use ← for False and → for True.
Leaderboard
Every score is kept. See each player's best, or every run as it happens.
Player
Player
My scores on this device
Your best in each mode and your recent runs, kept in this browser.
| Mode | Result | Total | Average | Date |
|---|
How it works
Read the whole sentence
The picture, the middle box and the word make one sentence: [picture] is not Cow. Answer True if the sentence is right. The “is not” is where most mistakes happen.
Four ways to play
Practice: warm up as long as you like; nothing is recorded. Short and Long: 10 or 20 questions, ranked by fewest mistakes, then fastest time. Endless: keep going until your first mistake. You get 1 second per answer, 0.1 s less every 50 correct, down to 0.3 s.
Why it helps
Each answer asks you to see, read, hold a rule in mind and choose, quickly and without guessing. Short daily rounds build the habit of deciding clearly under a little pressure, and your scores show the progress.