[重点]主攻382705头,主攻273805尾.
1,排除491头,497百,053十,尾491.
2,铁卒:23,28,73,78.
3,三字现:231,236,281,286,731,736,781,786.
4,二定:3XX2,3XX7,8XX2,8XX7,2XX3,2XX8,7XX3,7XX8,X1X8.
5,三定:33X2,33X7,38X2,38X7,83X2,83X7,88X2,88X7,71X3,71X8.
6,直码:3321,3326,3821,3826,8321.8326,8371,8376,8821,8826.