The question box has a light green background. It can contain either a Greek letter — like e.g. α, β,..., ω — or the name of a Greek letter — like e.g. alpha, beta,..., omega —.
Four options are shown below the question box. If the question box contains the symbol for a letter, you have to choose the matching name. If the question box contains the name of a letter, you have to choose the matching symbol.
You have 10 seconds to choose your answer. If you get it right, you'll get as many points as the time left, and two extra seconds. Also, the counter for the letter you guessed will decrease by one. If your answer is wrong, your score will decrease by as many points as the time left and your time will decreases by one second. Also, the counter for the letter you did not guess will go up by three units.
The game ends either when the countdown reaches zero or when all the counters are set to one. In the second case, the score you have will be doubled.