Rules:
1.The game has two players, playing in rounds.
2.In each turn, ap player rolls a dice as many times as he wishes. Each result get added to his round score.
3.But, if the rolls a 1, all his round score gets lost.After that ,it's the next player's turn.
4.the player can choose 'hold' , which means that his round score gets added to his global score .After that, it;s the nexxt player's turn.
5.the first player to reach 100 points on global score wins the game.