Hexcess is a two-player Checkers-like game played with hexagonal pieces in two colors and no board.
Players take turns placing their pieces so that at least one side is touching a previously placed piece.
Once both players have placed all their pieces, they alternate moves. A valid move consists of hopping one of your pieces over an opponent's piece. Your piece must land such that any and all pieces no longer attached to the main structure are your opponent's color. Any pieces stranded thus, as well as the piece hopped over, are captured and removed from play.
The game ends when neither player is able to make a valid move. Whichever player has the greatest number of remaining pieces left on the table, wins.