in each box the are are an unknown numbers of gold coins, and you don't know wich box is the richer. Click on one box to see how many coins it contains. You have now to decide if accepts this box (click on ACCEPT) or try to look for a richer box. If you click on a second box, you will see its coins, but you can't choose the first one anymore. You can accept the second box or go to the third. If you click on the third box you will automatically accepted its quantity of coins You have 10 rounds to collect the highest number of coins