The paper can be found in the link below

http://www2.sas.com/proceedings/forum2007/011-2007.pdf


The paper presents many ways solve a Sudoku(数独) problem from data step, SQL to LP CLP.

Solving a Sudoku(数独) can be thought as a finding a feasible solution in OR/linear programming problem. That is why LP, CLP come in to play.

Enjoy!