Number to Guess:

You'll be given a random number at the sart 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 to random
number, you lose the game if your total score goes above the random number.

The value of each crystal is hidden from you until you
click on it.

Each time when the game starts, the game will change values of each crystal.