三个红色和两个黑色
% ] F/ K \8 S! X6 y5 qtvboxnow.com
# A# c+ w( P" E F最后那个说我不知道我戴什么颜色帽子.
) j: F1 i3 ~9 m. R+ U公仔箱論壇- the front #1 , #2 must not be black/black. Otherwise, #3 will know he is red. #1/#2 must be red/red or red/black or black/red.tvboxnow.com. k' }% T) ?1 w& N
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中间那个说我也不知道我戴什么颜色帽子.
5 @. \ m6 j- L$ U" l: vtvboxnow.com- for #2, if he see #1 wearing black, he can be sure he is red. since #2 cannot be sure, then #1 must NOT be wearing black.
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但是第一个说我知道我戴什么颜色帽子.tvboxnow.com2 Q9 Q( L( A" q' y7 U7 g1 ?3 u
- #1 must be wearing RED |