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Difficult Logic Problems
My version of Cheryl's Birthday problem

Fri Feb 02, 2018 10:24 am  by josegarrido2

Hi, I would like to share with you a more difficult version of Cheryl's birthday problem, for those of you that found it easy.

So the problem is as follow:

Albert and Bernard just become [sic] friends with Cheryl, and they want to know when her birthday is. Cheryl gives them a list of possible dates:


Then Cheryl tells Albert the month and Bernard the day.

Albert: I Don't know when Cheryl's birthday is, and I also know that you know that I know that you don't know it.
Bernard: Thanks for your information, but I don't know now either.
Albert: Nor I do.
Bernard: But now I do!
Albert: So I do!

So, when is cheryl's birhday?

You will not deny that the statements sound pretty awesome. :-)

Best regards,
José Antonio Garrido.

Edit: It seems that images doesn't show on this forum. This is the image link:
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