[quiz] XKCD Appetizers Solution

[Chiao-Lun Cheng]

I've pasted a brute force solution that uses Peter Norvig's
tree-search function at

http://paste.lisp.org/display/44376

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 Chiao-Lun Cheng
 Van Voorhis Group
 Department of Chemistry, Room 6-234
 Massachusetts Institute of Technology
 77 Massachusetts Avenue
 Cambridge, MA 02139-4307

 Email  : chiao at mit.edu
 Tel    : +1 (617) 253-1539
 Website    : http://zeno.unixboxen.net
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