一、奇偶结构, 2---4,或3---3,
二、小大结构, 4---2,或3---3,
三、优选二十码大底,
02,05,06,09,10,11,13,15,16,17,
18,19,20,22,23,26,29,30,32,33,
四、精选十二码,
02,06,09,10,11,13,
16,17,18,20,27,30,
五、浓缩八码,
06,09,11,16,17,18,27,30,
六、龙头, 06,09,凤尾,6,27,
七、选蓝码,
01,02,04,07,09,10,11,12,14,
01,02,04,07,10,11,12,14,
02,04,07,10,11,12,14,
02,04,10,11,12,14,
04,10,11,12,14,
04,10,12,14,
04,10,12,
04,12,
12,