[重点]主攻051649头,主攻163827尾.
1,排除387头,493百,160十,尾045.
2,铁卒:51,56,53,58.
3,三字现:513,518,563,568,013,018,063,068.
4,二定:5XX1,5XX6.0XX1,0XX6,3XX3,3XX8,8XX3,,8XX8,5X8X.
5,三定:0X31,0X36,0X81,0X86,5X31,5X36,5X81,5X86,9X32,9X37.
6,直码:5131,5136,5181,5186,5631.5636,5681,5686,9132,9137.