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Yet Another Sudoku Solver: PROC FCMP
There have been many different Sudoku solvers written using various SAS® tools (e.g., DATA step, PROC CLP, PROC OPTMODEL with MILP Solver, and PROC SQL). This paper introduces yet another tool, PROC FCMP, which can be used to solve Sudoku puzzles using recursive functions. A unique feature of this solver is the inclusion of the ability to determine whether a puzzle has a unique solution, which is a necessary step toward actually generating Sudoku puzzles directly with SAS. Additionally, the paper presents a comparative analysis of some of the other solutions that have been proposed.
Click here to view the paper
Click here to download the SAS code described in this paper
Click here to download the SAS code for the Sudoku generator (not part of the paper)
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When and Where
/********************* Monday, April 23, 2012 12Noon-12:20pm Asia 5 *********************/