public Board()
{
state = new Position[9];
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 3; j++)
{
state[3 * i + j] = new Position(i, j);
}
}
}
public void Mark(bool team, Position p)
{
var x = state.Single(t => t.x == p.x && t.y == p.y);
x.occupied = true;
x.marker = GetMarker(team);
}