Original Code: Testing Sudoku Puzzles Puzzle 1 Evil # 10,107,075,407 _ _ _ _ _ 6 1 8 _ _ 8 _ _ 7 _ 3 9 _ _ 3 _ 4 _ _ 7 _ _ _ _ _ 5 _ _ 8 _ _ 9 _ _ _ _ _ _ _ 1 _ _ 7 _ _ 1 _ _ _ _ _ 9 _ _ 3 _ 5 _ _ 7 5 _ 6 _ _ 3 _ _ 2 6 9 _ _ _ _ _ . . Solving Sudoku . . . Sudoku is not solved. Trying advanced techniques. applied square rule applied square rule 7 9 [2,4] [2,3] [2,3,5] 6 1 8 [2,4,5] [1,4,5,6] 8 [1,2,4] [1,2] 7 [2,5] 3 9 [2,4,5,6] [1,5,6] 3 [1,2] 4 [1,2,5,8,9] [2,5,8,9] 7 [2,6] [2,5,6] [1,2,4] [1,4,6] 3 5 [2,4,9] [2,4,7,9] 8 [2,4,6,7] [2,6,9] 9 [4,5,6] 8 [2,3,6,7] [2,3,4] [2,4,7] [2,5,6] [2,4,6,7] 1 [2,4] [4,5,6] 7 [2,6,8] [2,4,8,9] 1 [2,5,6,9] [2,4,6] 3 [1,4,8] [1,4] 9 [1,2,7,8] [1,2,4,8] 3 [2,6] 5 [2,6,7,8] [1,4,8] 7 5 [1,2,8] 6 [2,4,8] [2,9] 3 [2,8,9] 3 2 6 9 [5,8] [5,7,8] 4 1 [7,8] Time (510 ms) View of Puzzle in 3X3X3 format 7 9 [2,4] [2,3] [2,3,5] 6 1 8 [2,4,5] [1,4,5,6] 8 [1,2,4] [1,2] 7 [2,5] 3 9 [2,4,5,6] [1,5,6] 3 [1,2] 4 [1,2,5,8,9] [2,5,8,9] 7 [2,6] [2,5,6] [1,2,4] [1,4,6] 3 5 [2,4,9] [2,4,7,9] 8 [2,4,6,7] [2,6,9] 9 [4,5,6] 8 [2,3,6,7] [2,3,4] [2,4,7] [2,5,6] [2,4,6,7] 1 [2,4] [4,5,6] 7 [2,6,8] [2,4,8,9] 1 [2,5,6,9] [2,4,6] 3 [1,4,8] [1,4] 9 [1,2,7,8] [1,2,4,8] 3 [2,6] 5 [2,6,7,8] [1,4,8] 7 5 [1,2,8] 6 [2,4,8] [2,9] 3 [2,8,9] 3 2 6 9 [5,8] [5,7,8] 4 1 [7,8] Updated to show Squares that were solved 7 9 _ _ _ 6 1 8 _ _ 8 _ _ 7 _ 3 9 _ _ 3 _ 4 _ _ 7 _ _ _ _ 3 5 _ _ 8 _ _ 9 _ 8 _ _ _ _ _ 1 _ _ 7 _ _ 1 _ _ 3 _ _ 9 _ _ 3 _ 5 _ _ 7 5 _ 6 _ _ 3 _ 3 2 6 9 _ _ 4 1 _ _______________________________________________________________________ Puzzle 2 Evil # 7,777,777,777 _ _ 9 7 _ _ _ _ 5 7 _ _ _ _ 9 _ _ _ 4 _ 1 _ _ _ _ 2 _ _ _ 8 3 4 7 _ _ 9 _ _ _ _ _ _ _ _ _ 3 _ _ 6 1 8 4 _ _ _ 4 _ _ _ _ 7 _ 3 _ _ _ 8 _ _ _ _ 6 6 _ _ _ _ 3 2 _ _ . . Solving Sudoku . . . Sudoku is not solved. Trying advanced techniques. applied square rule applied square rule [2,8] [2,3,8] 9 7 [2,3,8] [1,2,4] [1,3,6,8] [1,3,4,6,8] 5 7 5 6 [1,2,4] [2,3,8] 9 [1,3,8] [1,3,4,8] [1,4,8] 4 [3,8] 1 5 [3,8] 6 9 2 7 [1,2,5] [1,2,6] 8 3 4 7 [1,5,6] [1,5,6] 9 [1,2,5] [1,2,6,7] 4 [2,9] [2,5,9] [2,5] [1,3,5,6,8] [1,3,5,6,7,8] [1,8] 3 9 [5,7] 6 1 8 4 [5,7] 2 [1,5,8,9] 4 2 [1,9] 6 [1,5] 7 [1,5,8,9] 3 [1,5,9] [1,7] 3 8 [2,5,7,9] [1,2,4,5] [1,5] [1,4,5,9] 6 6 [1,7,8] [5,7] [1,4,9] [5,7,9] 3 2 [1,4,5,8,9] [1,4,8] Time (358 ms) Updated to show Squares that were solved _ _ 9 7 _ _ _ _ 5 7 5 6 _ _ 9 _ _ _ 4 _ 1 5 _ 6 9 2 7 _ _ 8 3 4 7 _ _ 9 _ _ 4 _ _ _ _ _ _ 3 9 _ 6 1 8 4 _ 2 _ 4 2 _ 6 _ 7 _ 3 _ _ 3 8 _ _ _ _ 6 6 _ _ _ _ 3 2 _ _ ______________________________________________ Puzzle 3 Hard # 123,456,789 _ 8 _ _ _ 9 5 _ _ _ _ 6 4 _ _ 3 _ 1 _ 1 _ _ _ _ _ _ _ 9 5 2 _ _ _ _ _ 7 _ _ _ _ 7 _ _ _ _ 7 _ _ _ _ _ 2 3 4 _ _ _ _ _ _ _ 8 _ 1 _ 3 _ _ 5 9 _ _ _ _ 8 6 _ _ _ 1 _ Type any key followed by period to continue.n. . . Solving Sudoku . . . Sudoku is solved. 3 8 7 1 6 9 5 4 2 5 2 6 4 8 7 3 9 1 4 1 9 5 3 2 6 7 8 9 5 2 3 1 4 8 6 7 8 3 4 2 7 6 1 5 9 7 6 1 9 5 8 2 3 4 6 9 5 7 2 1 4 8 3 1 7 3 8 4 5 9 2 6 2 4 8 6 9 3 7 1 5 ____________________________________________ Puzzle 4 Evil # 7,304,228,637 1 4 _ _ _ _ _ 2 _ _ _ 7 _ _ _ 8 _ _ _ _ _ 7 _ _ 1 _ 4 _ 1 _ _ 2 6 _ _ 3 _ 3 _ _ _ _ _ 6 _ 7 _ _ 3 5 _ _ 4 _ 3 _ 2 _ _ 1 _ _ _ _ _ 8 _ _ _ 5 _ _ _ 7 _ _ _ _ _ 3 8 Type any key followed by period to continue.n. . . Solving Sudoku . . . Sudoku is not solved. Trying advanced techniques. applied square rule applied square rule 1 4 [5,6,9] [5,6,8,9] [6,8,9] [5,8,9] 3 2 7 [2,5,9] [2,5,9] 7 [1,2,4,5,9] [1,3,4,9] [2,3,4,5,9] 8 [5,9] 6 [2,5,6,8,9] [2,5,6,8,9] 3 7 [6,9] [2,5,9] 1 [5,9] 4 [5,9] 1 [4,5,9] [4,9] 2 6 7 8 3 [2,8,9] 3 [4,9] [1,4,8,9] [1,4,7,8,9] [4,7,8,9] [2,9] 6 5 7 [2,6,8,9] [6,9] 3 5 [8,9] [2,9] 4 1 3 [5,6] 2 [4,5,6,8] [4,6,8] 1 [4,6] 7 9 [4,6,9] [6,9] 8 [4,6,9] [3,4,6,7,9] [3,4,7,9] 5 1 2 [4,5,6,9] 7 1 [2,4,5,6,9] [4,6,9] [2,4,5,9] [4,6] 3 8 Time (334 ms) Updated to show Squares that were solved 1 4 _ _ _ _ 3 2 7 _ _ 7 _ _ _ 8 _ 6 _ _ 3 7 _ _ 1 _ 4 _ 1 _ _ 2 6 7 8 3 _ 3 _ _ _ _ _ 6 5 7 _ _ 3 5 _ _ 4 1 3 _ 2 _ _ 1 _ 7 9 _ _ 8 _ _ _ 5 1 2 _ 7 1 _ _ _ _ 3 8 ______________________________________________________ Puzzle 5 Evil # 6,912,254,876 5 _ _ 9 4 1 _ _ _ _ _ _ _ _ _ _ 6 _ _ _ 2 _ _ 6 _ _ 9 1 _ _ 7 _ _ 9 _ _ _ 6 _ _ 9 _ _ 2 _ _ _ 9 _ _ 8 _ _ 7 4 _ _ 5 _ _ 6 _ _ _ 7 _ _ _ _ _ _ _ _ _ _ 1 2 9 _ _ 5 Type any key followed by period to continue.n. . . Solving Sudoku . . . Sudoku is not solved. Trying advanced techniques. applied square rule Sudoku is solved. 5 3 6 9 4 1 2 7 8 9 1 8 2 7 3 5 6 4 7 4 2 8 5 6 3 1 9 1 5 4 7 3 2 9 8 6 8 6 7 4 9 5 1 2 3 3 2 9 6 1 8 4 5 7 4 9 1 5 8 7 6 3 2 2 7 5 3 6 4 8 9 1 6 8 3 1 2 9 7 4 5