You will be shown a number of paintings based on your chosen difficulty level for 10 seconds.
After that, one of the pictures will disappear. Take your time to look at the remaining pictures and press Continue when you are ready.
Finally, all the pictures will be shown again in a random order. Your task is to click on the picture that was briefly missing but came back.
You can change the difficulty level before starting the game if you wish.
When you are ready, press Play.
Difficulty level: