172期：大围：01,06,07,08,10,12,13,14,15,16,17,18,23,26,27,33,34,36,38,40,44,45,47,48（共半数）开44准
173期：大围：05,06,07,09,13,14,17,18,19,20,21,27,28,29,30,31,32,34,35,40,41,42,43,46（共半数）开26错
174期：大围：01,02,05,06,07,13,16,18,20,21,23,24,25,29,31,32,33,34,36,38,41,43,48,49（共半数）开41准
175期：大围：02,06,07,09,11,13,14,18,21,24,25,28,31,32,33,34,35,36,39,43,44,45,47,48（共半数）开26错
176期：大围：01,02,03,05,08,12,13,14,15,16,17,19,22,24,27,29,33,36,37,38,40,43,47,48（共半数）开？？√【？中？】