171期：必中24码（03,04,11,12,14,15,16,20,21,24,26,28,29,30,31,33,35,36,37,39,41,43,47,48）开：47中
172期：必中24码（04,05,07,09,12,14,16,18,19,25,27,28,29,31,32,33,35,36,37,38,40,43,44,46）开：36中
173期：必中24码（01,02,06,09,10,12,13,16,17,20,22,23,26,30,33,35,38,40,41,42,43,45,48,49）开：38中
174期：必中24码（02,05,06,08,10,11,15,17,22,23,27,28,29,30,31,32,35,37,38,41,43,44,45,49）开：00