The Kahiko-Hula Gambit Thematic is still open. Moves begin 1. c4 e5 2. e3 Nf6 3. f4 exf4 4. Nf3. White sacrifices 1-2 pawns for development and open lines. To join:

http://www.chess.com/tournament/red-army-kahiko-hula-gambit-thematic