public static bool CanAttack(QueenAttack queen1, QueenAttack queen2)
{
if (queen1 == null || queen2 == null || queen1.Equals(queen2))
{
throw new ArgumentException();
}
if (queen1.Row != queen2.Row &&
queen1.Column != queen2.Column &&
Math.Abs(queen1.Row - queen2.Row) != Math.Abs(queen1.Column - queen2.Column))
{
return(false);
}
return(true);
}