[重点]主攻051627头,主攻163849尾.
1,排除498头,271百,491十,尾057
2,铁卒:24.29,74,79.
3,三字现:214,219.264,269,714,719,764,769.
4,二定.14XX,19XX,64XX.69XX, XX24, XX29, XX74, XX79.
5,三定,14X4.14X9,19X4,19X9,64X4,64X9,69X4,69X9,1X74,1X79.
6,直码:1474.1479,1974,1979,6474.6479,6974,6979,6924,6929.