Here you have an overview for all tags for the various backgammon positions. The number tells you how many positions have that tag.
Anchor (170):
Backgame (78):
Bear Off (137):
Blitz (22):
End Game (227):
Holding (67):
Middle Game (212):
Miscellaneous (13):
On the Bar (25):
Opening 1st Move (40):
Opening 2nd Move (1638):
Opening 3rd Move (3922):
Priming (54):
Race (34):