%problem from http://www.parade.com/askmarilyn/numbrix/archive/blueberry/Numbrix-20110911.html
#const n=9.
hint(1,1,75).
hint(1,3,73).
hint(1,5,13).
hint(1,7,17).
hint(1,9,27).
hint(3,1,77).
hint(3,9,29).
hint(5,1,61).
hint(5,9,31).
hint(7,1,59).
hint(7,9,33).
hint(9,1,53).
hint(9,3,51).
hint(9,5,43).
hint(9,7,37).
hint(9,9,35).
