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Sudoku On The Web
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Another variation on Sudoku is to vary the number of cells/boxes that
make up the Sudoku grid...
Sticking with Sudoku grids consisting of square boxes, the following variations are possible:
- 4 X 4 grid of cells, consisting of four 2 X 2 boxes. 4 symbols (usual convention - the
digits 1 to 4) are needed to solve these.
Note: These puzzles tend to be very easy to solve, and most suitable for kids
Where to find:
- Classic Sudoku - 9 X 9 grid of cells, consisting of nine 3 X 3 boxes. 9 symbols (usual convention - the
digits 1 to 9) are needed to solve these.
Where to find:
- 16 X 16 grid of cells, consisting of sixteen 4 X 4 boxes. 16 symbols (usual convention - the
digits 0 to 9, and letters A through F) are needed to solve these.
Where to find:
- 25 X 25 grid of cells, consisting of twenty-five 5 X 5 boxes. 25 symbols (usual convention - the
digits 0 to 9, and letters A through O) are needed to solve these.
- 36 X 36 grid of cells, consisting of thirty-six 6 X 6 boxes. 36 symbols (usual convention - the
digits 0 to 9, and letters A through Z) are needed to solve these.
- ...And so on. For example, it is possible to create
(and solve) 49 X 49 Sudokus, or 64 X 64 Sudokus, or larger still Sudokus
- but so many different symbols are required that it become impractical
to do with them pen and paper
(even using digits 0 through 9, and A to Z
upper-case letters, and a to z lower-case letters, doesn't give enough symbols
for 64X64 Sudoku puzzles).
It's also possible, to use rectangular boxes to make up the Sudoku grid,
for example:
- 6 X 6 grid of cells, can be made from six 2 X 3 (or 3 X 2) boxes. 6 symbols
(usual convention - the digits 1 to 6) are needed to solve these.
Note: These puzzles tend to be fairly easy to solve, and generally suitable for kids,
Sudoku beginners, etc.
Where to find:
- 12 x 12 grid of cells, consisting of twelve 3 X 4 (or 4 X 3) boxes. 12 symbols
(usual convention - digits 0 to 9, and letters A and B) are needed to solve these.
Where to find:
- Do You Sudoku? (electronic game)
- Sunday Times (British newspaper) [last checked January 2006]
Finally, there isn't any reason why the boxes that make up a Sudoku must
be squares or rectangles:
- Jigsaw Sudoku - a 9 X 9 grid of cells solved using the numbers 1 through 9.
As with Classic Sudoku each row, column or box must contain each of the digits
1 through 9 - except the boxes are strange irregular shapes.
Where to find:
  | Click here for details | The number puzzle that's been rocketed to a worldwide craze now comes in a form great for younger minds! Do You Sudoku? For kids uses six animal symbols on a grid composed of six 3x2 boxes. Great for discovering patterns and developing logical thinking skills! Ages 6 and up.
Click here for full description |
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3: Different Grid Sizes/Shapes
