【重点】百位650728,十位052713.
1、排除481头,914百,694十,尾286
2、铁卒:29、23、69、78.
3、三字现:689,469,145,035,068,247,278,458
4、二定位0XX7 50XX 0X1X 7X5X 2X0X XX77 7XX1 XX57 5XX7 X5X3 7X7X 65XX 07XX 0X5X 6X2X 0X7X 5XX3
5、三定位:X501,X013,5X15,071X,2X11,X657,62X4,75X5,55X5,057X,7X03,701X,0X05,7X13,