[重点]主攻054916头,主攻051649尾.
1,排除273头,273百,498拾,382尾.
2,铁卒:14,19,64,69.
3,三字现:124,129,174,179,624,629,674,697.
4,二定:XX24,XX29,XX74,XX79,X1X4,X1X9,X6X4,X6X9,6XX4,6XX9
5,三定:X124,X129,X174,X179,X624,X629,X674,X679,61X4.61X9
6,直码:6124,6129,6174,6179,6624,6629,6674,6679,1624.1629.1679,