3TARe-2017-Yahtzee UML skeemid: https://creately.com/diagram/j7u8iw5l1/i5UQjyalMP2zzejc4T0H487advo%3D https://creately.com/diagram/j7u9b8bw1/nOPbErGMo284qu9POCoyPvc0Lww%3D