[重点]主攻382716头,主攻273849尾.
1,排除059头,051百,386十,160尾.
2,铁卒:42,47,92,97.
3,三字现:421,426,471,476,921,926,971,976.
4,二定:X4X2,X4X7,X9X2,X9X7,14XX,19XX,64XX,69XX,XX22,XX72.
5,三定:142X,147X,192x,197X,642X,647X,692X,697X,X422,X472.
6,直码:1422,1472,1922,1972,6422,6472,6922,6972,1927,1977.