Listing 1: Creating and Populating the SudokuInput Table

SET NOCOUNT ON;
USE tempdb;
GO
IF OBJECT_ID('SudokuInput') IS NOT NULL
  DROP TABLE SudokuInput;
GO
CREATE TABLE SudokuInput
(
  row INT NOT NULL,
  col INT NOT NULL,
  val INT NOT NULL,
  PRIMARY KEY(row, col),
  UNIQUE(row, val),
  UNIQUE(col, val)
);
INSERT INTO SudokuInput(row, col, val) VALUES(1, 2, 6);
INSERT INTO SudokuInput(row, col, val) VALUES(1, 4, 1);
INSERT INTO SudokuInput(row, col, val) VALUES(1, 6, 4);
INSERT INTO SudokuInput(row, col, val) VALUES(1, 8, 5);
INSERT INTO SudokuInput(row, col, val) VALUES(2, 3, 8);
INSERT INTO SudokuInput(row, col, val) VALUES(2, 4, 3);
INSERT INTO SudokuInput(row, col, val) VALUES(2, 6, 5);
INSERT INTO SudokuInput(row, col, val) VALUES(2, 7, 6);
INSERT INTO SudokuInput(row, col, val) VALUES(3, 1, 2);
INSERT INTO SudokuInput(row, col, val) VALUES(3, 9, 1);
INSERT INTO SudokuInput(row, col, val) VALUES(4, 1, 8);
INSERT INTO SudokuInput(row, col, val) VALUES(4, 4, 4);
INSERT INTO SudokuInput(row, col, val) VALUES(4, 6, 7);
INSERT INTO SudokuInput(row, col, val) VALUES(4, 9, 6);
INSERT INTO SudokuInput(row, col, val) VALUES(5, 3, 6);
INSERT INTO SudokuInput(row, col, val) VALUES(5, 7, 3);
INSERT INTO SudokuInput(row, col, val) VALUES(6, 1, 7);
INSERT INTO SudokuInput(row, col, val) VALUES(6, 4, 9);
INSERT INTO SudokuInput(row, col, val) VALUES(6, 6, 1);
INSERT INTO SudokuInput(row, col, val) VALUES(6, 9, 4);
INSERT INTO SudokuInput(row, col, val) VALUES(7, 1, 5);
INSERT INTO SudokuInput(row, col, val) VALUES(7, 9, 2);
INSERT INTO SudokuInput(row, col, val) VALUES(8, 3, 7);
INSERT INTO SudokuInput(row, col, val) VALUES(8, 4, 2);
INSERT INTO SudokuInput(row, col, val) VALUES(8, 6, 6);
INSERT INTO SudokuInput(row, col, val) VALUES(8, 7, 9);
INSERT INTO SudokuInput(row, col, val) VALUES(9, 2, 4);
INSERT INTO SudokuInput(row, col, val) VALUES(9, 4, 5);
INSERT INTO SudokuInput(row, col, val) VALUES(9, 6, 8);
INSERT INTO SudokuInput(row, col, val) VALUES(9, 8, 7);