The New Sudoku Players' Forum

[robert@fm]

Are there any solvers available which add extra boxes beyond the standard 9, preferably with a user-defined-box option?

It could add interest to Sudoku puzzles if there were added to them any or all of the following extra boxes:

1. The acute diagonal (/)
   
2. The grave diagonal (\)
   
3. The outer "exploded" box (the 9x9 box consisting of the top-left cell of the top-left box, the top-centre cell of the top-centre box, etc., like this:
   
   

   Code: Select all

   #..|.#.|..#
...|...|...
...|...|...
---+---+---
...|...|...
#..|.#.|..#
...|...|...
---+---+---
...|...|...
...|...|...
#..|.#.|..#

   
   
   )
   
4. The inner "exploded" box, thus:
   
   

   Code: Select all

   ...|...|...
...|...|...
..#|.#.|#..
---+---+---
...|...|...
..#|.#.|#..
...|...|...
---+---+---
..#|.#.|#..
...|...|...
...|...|...

   
   
5. The central cross:
   
   

   Code: Select all

   ...|...|...
...|...|...
...|.#.|...
---+---+---
...|.#.|...
..#|###|#..
...|.#.|...
---+---+---
...|.#.|...
...|...|...
...|...|...

   
   
   
6. The central saltire:
   
   

   Code: Select all

   ...|...|...
...|...|...
..#|...|#..
---+---+---
...|#.#|...
...|.#.|...
...|#.#|...
---+---+---
..#|...|#..
...|...|...
...|...|...

There are probably other interesting possibilities.

Does any designer/solver yet have this feature or anything like it?