1. Look at the six equations.
  2. Tap the equation that is not true.
  3. If you tap a correct equation, it is crossed out and your tap count increases.
  4. Find one error in each of the three rounds. Your score is the fewest total taps; 3 taps is perfect.
  5. The timer starts when the first round appears, pauses between rounds and while the tab is hidden, and compares equal tap scores.

One game each day

Your progress is saved on this device. Everyone receives the same challenge, and a new game begins at midnight Eastern.

Play today’s game