A:排除号码:
排除前区:01,04,07,10,12,13,22,23=0-1
排除后区:01,04,08,09
B:龙头凤尾:
龙头关注:02或03
凤尾关注:17或18
C:前区方案:
a-10码:02,03,05,06,08,09,11,14,17,18
b-14码:02,03,05,06,08,09,11,14,17,18,21,24,25,26
c-18码:02,03,05,06,08,09,11,14,17,18,21,24,25,26,27,28,29,30
D:后区方案:
后区2码:02,03
后区4码:02,03,06,11
后区6码:02,03,05,06,11,12
E:复式投注:
复试10+2:02,03,05,06,08,09,11,14,17,18+02,03