173期经典特围：
02,04,06,08,09,10,11,12,15,18,19,20,21,22,23,24,27,29,30,32,34,35,36,37,43,44,45,46,48,49,（共30个
172期经典特围：开36错
01,02,04,06,08,12,14,15,20,22,23,24,25,28,29,30,31,32,35,37,39,40,41,42,44,45,46,47,48,49,（共30个）
171期经典特围：开47中
02,03,06,07,09,10,13,14,15,16,17,19,20,22,23,27,28,30,34,35,38,39,41,43,44,45,46,47,48,49,（共30个）
170期经典特围：开33错
01,02,03,05,06,07,08,10,11,12,13,16,17,18,19,20,23,24,26,27,29,30,31,32,36,39,41,46,47,49,（共30个）
169期经典特围：开07中
01,03,04,06,07,10,11,12,13,14,15,16,17,18,20,27,28,29,30,31,33,34,38,39,40,42,44,46,47,49,（共30个）