public bool IsFourOfAKind(Hand hand)
{
foreach (IGrouping<Rank, Card> grouping in hand.GroupBy(c => c.Rank))
if (grouping.Count() == 4)
return true;
return false;
}
public bool IsFullHouse(Hand hand)
{
IEnumerable<IGrouping<Rank, Card>> groupings = hand.GroupBy(c => c.Rank);
return(groupings.Count() == 2 &&
(groupings.ElementAt(0).Count() == 2 ||
groupings.ElementAt(0).Count() == 3));
}
public bool IsTwoPair(Hand hand)
{
IEnumerable<IGrouping<Rank, Card>> groupings = hand.GroupBy(c => c.Rank);
return ((from g in groupings where g.Count() == 2 select g).Count() == 2);
}
