You will be given a random number at the start of the game.
There are four crystals below. By clicking on a crystal you will add a specific amount of points to your total score.
You win the game by matching your total score exactly to the random number.
The value of each crystal is hidden from you until you click it.
Each time the game starts, the random number and the value of each crystal will change.
Your random number:
Your score: