Wicked Sudoku : 200 Hard Puzzles
                        
                    
                                                                by Will Shortz
                                                                
                                    2020-05-14 13:59:02
                                
                                
                                    
                                
                            
                        
    
                            
                
                                                                            
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    