%problem from http://www.parade.com/askmarilyn/numbrix/archive/blueberry/Numbrix-20110215.html
#const n=9.
hint(1,1,41).
hint(1,5,35).
hint(1,9,9).
hint(2,2,43).
hint(2,5,32).
hint(2,8,11).
hint(5,1,49).
hint(5,2,48).
hint(5,8,18).
hint(5,9,19).
hint(8,2,77).
hint(8,5,56).
hint(8,8,61).
hint(9,1,79).
hint(9,5,69).
hint(9,9,65).
