Editing Sudoku (section)

=== Variations of grid sizes or region shapes ===
Although the 9×9 grid with 3×3 regions is by far the most common, many other variations exist. Sample puzzles can be 4×4 grids with 2×2 regions; 5×5 grids with ''[[pentomino]]'' regions have been published under the name Logi-5; the [[World Puzzle Championship]] has featured a 6×6 grid with 2×3 regions and a 7×7 grid with six ''[[heptomino]]'' regions and a disjoint region. Larger grids are also possible, or different irregular shapes (under various names such as ''Suguru'', ''Tectonic'', ''Jigsaw Sudoku'' etc.). ''The Times'' offers a 12×12-grid "Dodeka Sudoku" with 12 regions of 4×3 squares. Dell Magazines regularly publishes 16×16 "Number Place Challenger" puzzles (using the numbers 1–16 or the letters A-P). Nikoli offers 25×25 "Sudoku the Giant" behemoths. A 100×100-grid puzzle dubbed Sudoku-zilla was published in 2010.<ref>{{cite book |last=Eisenhauer |first=William |title=Sudoku-zilla |year=2010 |publisher=CreateSpace |page=220 |isbn=978-1-4515-1049-2}}</ref>

==== Mini Sudoku ====

Under the name "Mini Sudoku", a 6×6 variant with 3×2 regions appears in the American newspaper ''[[USA Today]]'' and elsewhere. The object is the same as that of standard Sudoku, but the puzzle only uses the numbers 1 through 6. A similar form, for younger solvers of puzzles, called "The Junior Sudoku", has appeared in some newspapers, such as some editions of ''The Daily Mail''.