 If a Flag reaches the opposing back rank and there is no adjacent opposing piece that can challenge it, the Flag wins the game immediately.If a Flag reaches the opposing back rank directly adjacent to an opposing piece, and that piece does not challenge the Flag immediately on the opponent's subsequent turn, then that Flag wins the game.Any player may reveal his Flag at any time and for any reason; play can then continue; most often, a player reveals his Flag after it has already secured victory at the opposing back rank.