[重点]主攻275149头,主攻164927尾.
1,排除386头,497百,163十,尾053
2,铁卒:71,76,74,79.
3,三字现:741,746,791,796,521,526,571,576,579.
4,二定.X1X1,X1X6,X6X1,X6X6,X3X4,X3X9,X8X4,X8X9.
5,三定,71X1,71X6,76X1,76X6,51X1,51X6,56X1,56X6,73X9,53X9.
6,直码:7141,7146,7191,7196,7641.7646,7691,7696.5141,5146.