[重点]主攻162749头,主攻163849尾.
1,排除385头,150百,492十,尾052
2,铁卒:71,76,74,79.
3,三字现:714,719.764,769,713,718,763,768.
4,二定.1XX4,1XX9,6XX4.6XX9, X2X4, X2X9, X7X4, X7X9.
5,三定,12X4.12X9,17X4,17X9,62X4,62X9,67X4,67X9,1X34,1X39.
6,直码:1734,1739,1784,1789,6734.6739,6784,6789,6234,6239.