best score in each category over the ten rounds. players can only enter a score in each category once, even if they throw a better score for that category later on in the game. this means that some categories may score zero if, for example, you have throw three '5s' and are trying for four of a kind. if you end up with '5', '5', '5', '3' and '6', and you already have scores for threes, fives and sixes, you may need to put that round as zero for ones so that you can still hope for a higher score in other categories in later rounds.
4. it is good strategy 