If a white queen and a black king are placed at random on a previously
empty chess board, what is the probability that the king will be in check?


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All midshipmen submitting correct solutions to problem #109 by noon on
Tuesday, March 8, win a cookie. The best solution will be posted on the
problem bulletin board.
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A solution is "correct" if it gives the correct answer and explains why
that answer is correct. A solution is "best" if it includes the clearest
correct explanation. Submit solutions to Prof. Hanna at mathprob@usna.edu
(please no attachments!) or via the mailbox in Chauvenet 301.



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No one submitted a correct answer to problem #109 ("friendly" subsets). My
cookies are getting stale.