308 the lottery of the previous period: 12689 309 [form] (1) the size analysis; Form 1 to 2 small to big. This focus on 1 small 2. (2) the odd-even analysis: a form of 2 1, occasionally look odd in current ChuHao, focus on code 9 ChuHao, judge the main form is: 2 key 1 pair. (3), 012 road analysis: 0 road 1, number 1 out of 1, 2 way out 1; ...