[重点]主攻492716头。主攻493827尾.
1,排除053头,053百,169十,尾051
2,铁卒:34.39,84,89.
3,三现:342,347.392,397,842,847,892,897.
4,二定:4XX4,4XX9,9XX4.9XX9,41XX,46XX,91XX,96XX.
5,三定:41X4.41X9,46X4,46X9,91X4,91X9,96X4,96X9,412X,417X.
6,直码:4124.4129,4174,4179,4624.4629,4674,4679,9124,9129.