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A teepical Sudoku puzzle, wi nine raws an nine columns that intersect at square spaces. Some o the cells are filled wi a nummer; ithers are blank cells tae be solved.
A typical Sudoku puzzle
The previous puzzle, shawin its solution.
An its solution

Sudoku (数独 sūdoku?, digit-single) (oreeginally cried Nummer Place)[1] is a logic-based,[2][3] combinatorial[4] nummer-placement puzzle. The objective is tae fill a 9×9 grid wi deegits sae that each column, ilk raw, an each o the nine 3×3 subgrids that compone the grid (an aa cried "boxes", "blocks", or "regions") conteens aw o the deegits frae 1 tae 9.

References[eedit | eedit soorce]

  1. Grossman, Lev (Mairch 11, 2013). "The Answer Men". Time. Retrieved Mairch 4, 2013. (registration needit)
  2. Arnoldy, Ben. "Sudoku Strategies". The Home Forum. The Christian Science Monitor. 
  3. Schaschek, Sarah (Mairch 22, 2006). "Sudoku champ's surprise victory". The Prague Post. Archived frae the original on August 13, 2006. Retrieved Februar 18, 2009. 
  4. Lawler, E. L. (1985). The Traveling Salesman Problem: A Guided Tour of Combinatorial Optimization. West Sussex: John Wiley & Sons. ISBN 0-471-90413-9.