January 22, 2013 - Super Hard © Kevin Stone

Auto pencil marks  Show a pinned square Show squares with a... 1 .2 ...3 ....4 .....5 ......6 .......7 ........8 .........9 Clear... Show errors in red Show duplicates Alternative highlights Warn when leaving page Pencil Marks: Simply enter multiple digits. [Show Potential Techniques] Techniques Potentially Required:   Forced Moves   Pinned Squares   Locked Sets   Intersection Removal   X-Wing   Swordfish   Unique Rectangles   XY-Wing [Hide]   [Show Clock]

When your cursor is on the Sudoku grid, you can navigate in the following way:

• Ctrl + Arrows
    Move around the grid
• a
    Auto pencil marks
• p
    Show a pinned square
• Shift + #
    Show squares with a <#>

The key choices may seem unusual, but the navigation has to avoid key presses that are reserved for the browser, for example we couldn't use CTRL+1 to highlight all squares that contain a <1> as this is opens the first window in Firefox, nor SHIFT+P as it is reserved for printing, etc. If you experience any problems, then please feel free to contact us

This Sudoku can be accessed directly using:
   http://www.brainbashers.com/sudoku252099

You can freely use this BrainBashers Sudoku image directly using:
   http://www.brainbashers.com/sudokuimage252099

Comprehensive Sudoku help is available if required. BrainBashers Daily Sudoku is available as an RSS feed and as part of the Daily Gubbins.

• Print Size?
  
  Large
  Small
  
  
• Current/Starting Grid?
  
  Current grid
  Starting grid
  
  
• Pencil Marks?
  
  With pencil marks
  Without pencil marks
  
  

Note: If there are no pencil marks on the current grid the system will prompt you to run an Auto pencil marks, remember that this may solve a few squares as numbers are eliminated. Pencil marks will not be printed it you've selected the starting grid.