290期：大围：01,03,04,05,06,07,08,10,11,12,14,19,24,25,29,34,35,40,41,42,44,45,46,49（共半数）开08准
291期：大围：01,02,03,06,08,09,10,11,14,15,16,18,19,23,25,27,33,34,37,40,42,44,45,47（共半数）开43错
292期：大围：02,05,06,07,08,10,13,14,16,17,18,19,21,22,24,25,26,29,31,32,42,43,48,49（共半数）开09错
293期：大围：01,03,05,06,07,09,10,11,18,19,21,26,27,30,31,35,39,41,42,45,46,47,48,49（共半数）开？？√【？中？】