[重点]主攻053849头,主攻162749尾.
1,排除167头,270百,493十,尾380.
2,铁卒:31,36,81,86.
3,三字现:310,315,360,365,810,518,860,568.
4,二定:31XX,36XX.81XX,86XX,3X1X,3X6X,8X1X,8X6X,3XX2.
5,三定:31X2,31X7,36X2,36X7,81X2,81X7,86X2,86X7,311X,316X.
6,直码:3112,3117,3162,3167,3662.3667,8112.8117,8162,8167.