回复：为什么没人看别人的答案？还猜结果？

The best method is : The No.1 counts the all black hots,if they are odd number,he say black,No.2 counts all black hots,if the number is odd,he say white,if the number is even he say black,...
The No.1 counts the all black hots,if they are even,he say white,...
no.2,3,........,can know the color of themself,by counting.