a:排除号码:
排除前区:01,04,07,10,17,18,28,32=0-1
排除后区:01,05,07,11
b:龙头凤尾:
龙头关注:06或09
凤尾关注:29或30
c:前区方案:
a-10码:06,09,13,14,16,24,26,27,29,30
b-14码:06,09,13,14,16,21,22,23,24,25,26,27,29,30
c-18码:03,05,06,09,13,14,15,16,20,21,22,23,24,25,26,27,29,30
d:后区方案:
后区2码:06,08
后区4码:02,04,06,08
后区6码:02,03,04,06,08,09