Yatzy Lite

Yatzy is a game played with dice.
The goal is to score as much points as possible.
You have five dice to roll.
In each turn you can roll the dice a total of three times.
After each roll, the player chooses which dice to keep, and which to reroll (Click on a die to keep it).At the end of each turn player must put a score or zero into one of the score boxes.
The game ends when all score boxes are used.
Game score is the sum of values in all score boxes.GUI changes.