i find one solution that is similar ) F, B; Q4 W }7 Q9 T5 h" abut i can't specify the heavier one is abnormal or the lighter one is abnormal when the case that has only two balls left.... , |' A; r G" w公仔箱論壇maybe there is a better one, let me see sin
actually this question always have someone asked, the calculation is very complicated, should give a no. of each ball, and first weight it in 6-6, and .... forgot...