261期：大围：01,02,03,04,07,09,11,13,14,15,18,20,22,23,31,32,34,39,42,44,45,47,48,49（共半数）开01准
262期：大围：02,03,04,05,06,10,12,14,15,17,19,20,23,26,27,29,30,31,32,36,37,38,46,47（共半数）开44错
263期：大围：01,02,06,07,10,11,13,17,19,22,28,29,30,34,35,36,37,40,43,45,46,47,48,49（共半数）开13准
264期：大围：01,03,08,09,10,12,13,16,19,22,23,25,26,28,29,32,33,40,41,43,44,45,46,49（共半数）开30错
265期：大围：01,02,03,04,05,08,10,11,13,15,16,18,19,25,27,29,30,31,33,35,39,40,44,49（共半数）开16准
266期：大围：03,06,07,09,10,13,19,20,21,23,24,25,26,28,32,33,35,37,39,41,43,44,45,47（共半数）开？？√【？中？】