Simple Sudoku Helper

 +  +  +   +  +  +   +  1  5 
 +  +  +   9  +  +   +  8  + 
 3  +  +   +  +  +   +  +  + 
 
 7  +  4   +  +  +   3  +  + 
 +  +  +   1  +  +   4  +  + 
 +  +  +   8  +  +   +  +  + 
 
 5  +  +   +  4  +   2  +  + 
 +  +  +   +  7  +   +  6  + 
 +  1  +   +  +  +   +  +  + 
Enter some numbers and press "Update"
  • Cells that contain just a number are completed; the only option provided by the drop-down box is bk (for "back") which will un-set the box.
  • Cells that contain a number in square brackets are currently uncompleted; the number shows how many legal entries there are, and the drop-down box permits the selection of one of those legal entries.
  • Get Another One