Numerical Fill-In Generator

Difficulty Options

How can I increase the difficulty of my Fill-In puzzles?

Numerical Fill-In Generator Version 2.0 has two different difficulty settings that can be used on all of the puzzle types.  These settings can be checked on or off from the Main Menu.  These settings are used during the current instance of the program and are reset when the program is started.

• Don't Show First Number
  This option, if checked, will remove the starting number from the puzzle when it is created.  This will greatly enhance the difficulty of many puzzles, and since some puzzles are symmetrical, more than one solution may exist.  A new menu item, Show Starting Number, will be accessible from the File menu on the puzzle to show the starting number if you change your mind for the current game.
  
  Small Puzzle Five Squares with the starting number not shown

• Reduced Numbers
  This option increases the difficulty of the puzzles by reducing the value of the digits used in the numbers when checked.  Normally the numbers are created with digits ranging from 0 to 9.  When the Reduced Numbers option is checked, however, the numbers are created with digits ranging from 0 to 5.  In turn, this may cause additional duplicates in the smaller numbers (2-digit and 3-digit numbers), but the puzzles are solved the same way.  Try the feature on a couple of puzzles to fully understand how much more difficult the puzzles become.
  
  Small Puzzle Wheel with the Reduced Numbers option selected

Both of these options are not set by default.  Nevertheless the puzzles will still be plenty difficult without these options.  While every puzzle has a solution, it may not be possible to easily determine the solution.