朝日新聞 7月6日 Be数独 ★3 BBB+

朝日新聞7月6日Be数独は★★★のやさしい問題です。同じような難易度の問題（Technical point=56 ）は、過去11例出題されています。

　

                                           Final answer

                                           Orders of determined digit

                      Time history of order by empty cells filled with solved digit

                      Ranking analysis of Puzzles considered visual veiwpoint

                                                        Sudoku avator A with exchanged digits         

            All Sudoku puzzles shown above cut from grids of continuous 3 block have the same degree of  difficulty and can be solved by using the same strategy.

                                        Visual pattern sheet of avator A



                                         Sudoku avator B by column exchange with same solution

                                         Visual pattern sheet  of Sudoku avator B