[重点]主攻051638头。主攻162738尾.
1,排除492头,270百,056十,尾490
2,铁卒:21.26,71,76.
3,三字现:214,219.264,269,714,719,764,769.
4,二定.X1X2,X1X7,X6X2.X6X7, X3X2, X3X7, X8X2, X8X7.
5,三定,X192.X197,X142,X147,X692,X697,X642,X647,X392,X397.
6,直码
1192.1197,1692,1697,6192.6197,6692,6697,6392,6397.