247期：←二十八码←《《《→→→01,05,08,10,12,13,15,18,19,21,22,23,25,28,29,30,31,33,35,36,39,40,41,42,46,47,48,49←←←》》》开：40准
248期：←二十八码←《《《→→→01,03,04,07,08,09,11,12,14,15,16,17,19,21,22,24,28,31,33,34,36,37,40,41,43,45,48,49←←←》》》开：20错
249期：←二十八码←《《《→→→01,02,03,04,05,06,07,11,13,15,18,20,22,24,26,27,28,30,31,33,34,37,39,41,42,43,45,49←←←》》》开：？