1 in 1296
No. If you have a good combination after the first or second roll you can score it right there.
It's made by Milton Bradley, now a division of Hasbro.
As in poker, a Full House is a roll where you have both a 3 of a kind, and a pair. Full houses score 25 points. link for help with Yahtzee:
I'm not sure if this is the HIGHEST score, but i got 611 I scored a 719 with 5 yahtzee's on 3-2-09. Scored 781 with 6 yahtzee's on 20/02/2009. Wow, how did you do that? I scored only 527 points with...