1. The best reference I am aware goes back to 2005
Unorthodox Openings Newsletter Nr 13 (net published)
Paul Keiser - Critical lines in the Halloween Gambit
2. I've dabbled with the opening including a vote chess game. From my limited experience both sides for advantage attempt to gain control of the d5 & f5 squares. Also I would suggest blitz and standard time control.
Good luck
>:)
The newest opening Ive taken up is the Halloween gambit, you sacrifice a knight for a pawn and a massive attack on blacks king.I know it relatively well and I know that if black plays correctly they can have a huge positional(but not material) advantage. This is why I usually only play it in blitz. Can someone help me and a rating of this opening on a scale of 1-10 would be nice also.