RIDDLE (very hard, I can't figure it out)!!?

Pedro ran the jail in Veracruz, Mexico, It was Christmas Eve and he had only three prisoners. Feeling benevolent for the holiday season, Pedro decided to give each prisoner the opportunity to go free. "Boys, I want to give you a chance to go free. As you can see, I have in my hand three white hats and two black hats, I am going to blindfold each of you then put one of these hats on each of your heads. If you can tell me for sure what color hat you have on, you can go free and never return to my jail again."

Pedro placed one hat on each of their heads, .put the two remaining hats out of sight in his office, then returned to the holding cell. Pedro entered the cell and removed their blindfolds. Each prisoner could see the other two prisoners and their hats, but they could not see their own hat or its color.

Pedro then said, "OK, prisoner #1, can you tell me for sure what color is your hat?"

The first man looked at hat #2 then hat #3. He thought for a while then said, "No, I can not tell for sure the color of my hat."

"Well, unfortunately for you, prisoner #1, you must serve out your sentence in my jail. Now prisoner #2, can you tell me for sure what color is your hat?"

Prisoner #2 looked at the hat on Prisoner #1, then looked at the hat on prisoner #3. He thought for a long while then said, "I am sorry. I can not tell for sure the color of my hat"

Pedro then said, "This is sad. All three of you must stay in my jail and serve out your sentences."

Prisoner #3 interrupted and said, "But, Pedro, you did not ask me if I know the color of my hat."

Pedro said, "Because you are totally blind I did not ask you."

Prisoner #3 responded, " I may be totally blind, but I know FOR SURE the color of my hat"


How did prisoner #3 know his hat color for sure ? What was his LOGIC ???
 
Well, there were 5 hats, three white, and two black. If he put two away, you have three left, and since the white had more quantity, i'm sure he chose white and was right.
 
the man's hat is white.

the first man looks and says he does not know, which means the other two hats must either be both white, or one white and one black. if they were both black he would know his was white.

the second man says he does not know, which means that the 3rd man's hat can't be black. If he looked at the 3rd man and saw a black hat he would know his was white, but when he looks forward and sees a white hat he knows his hat could either be black or white.

the third man, therefore, knows that his hat must be white
 
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